lululemon Define Jacket
lululemon Define Jacket
Sculpting, stretchy layering jacket with thumbholes and secure pockets—size up for comfort.
The lululemon Define Jacket is the sleek, sculpting layer that aims to keep active women looking polished while moving from studio to street, ideal for anyone who wants a flattering midlayer that won’t feel frumpy on a commute or warmup. Reviewers and reviewers agree the jacket delivers a snatched, body‑skimming silhouette and thoughtful details like thumbholes and Cuffins that genuinely improve wear, though expert and user feedback diverge on fabrics, with brand claims about buttery softness held up for Nulu while some say the Luon version feels sturdier and longer lasting. Sizing is the practical snag, so size up if you plan to layer or dislike a tight fit, and expect delicate care to keep the finish looking new. Compared with cheaper lookalikes, it wins on hardware and seams but asks a premium price, so value depends on how much you prioritize fit, fabric choice and longevity. Overall, your personal fit needs, fabric preference and care willingness shape whether this jacket feels like a wardrobe staple.
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Benefits
Trade-Offs
Slim, body-skimming cut creates a polished, confidence-boosting silhouette for everyday wear.
Snug, slim cut often feels tight across chest and sleeves, especially when layering.
Thumbholes, Cuffins, zipper garage and zip pockets make wearing and storing items fuss-free.
Hand-wash or delicate cycles only; repeated careful washing required to avoid fabric change.
Four-way stretch and sweat-wicking Luon/Lycra blend moves with you without restricting motion.
Lightweight fabrics won’t insulate in cold weather — you’ll need a heavier layer outdoors.
Lightweight, water-resistant fabric shields against drizzle while remaining breathable and packable for travel.
Nulu and delicate finishes pill or snag with regular wear, showing fuzz and worn spots.
Works studio-to-street—great for workouts, commutes, travel, and casual outings without seeming sporty.
Benefits
Slim, body-skimming cut creates a polished, confidence-boosting silhouette for everyday wear.
Thumbholes, Cuffins, zipper garage and zip pockets make wearing and storing items fuss-free.
Four-way stretch and sweat-wicking Luon/Lycra blend moves with you without restricting motion.
Lightweight, water-resistant fabric shields against drizzle while remaining breathable and packable for travel.
Works studio-to-street—great for workouts, commutes, travel, and casual outings without seeming sporty.
Trade-Offs
Snug, slim cut often feels tight across chest and sleeves, especially when layering.
Hand-wash or delicate cycles only; repeated careful washing required to avoid fabric change.
Lightweight fabrics won’t insulate in cold weather — you’ll need a heavier layer outdoors.
Nulu and delicate finishes pill or snag with regular wear, showing fuzz and worn spots.
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Publications
6 LEADING PUBLICATION REVIEWS
PureWow’s Stephanie Meraz is clearly impressed and genuinely enthusiastic about the lululemon Define Jacket. After three weeks of walks, workouts and errands she praises its sculpting, comfortable fit (preferring to size up), durable nylon‑Lycra blend, thoughtful details like thumbholes, pocket zippers and a zipper garage, and easy-care durability; she calls it versatile for gym, lounge, and everyday wear and even notes its viral “snatched waist” effect. Her only real caveat is that sizing runs small and can be tricky, so trying it on is wise. The tone is upbeat and approving throughout—practical, slightly giddy about the design tricks, and convincingly sold on the jacket as a worthwhile, long-lasting staple rather than a fleeting trend.
Lauren Cunningham at Refinery29 is genuinely positive about the Define Jacket. She likes it for everyday comfort and stretch — calling it soft, second-skin cozy and easy to move in — and praises thoughtful details like padded zips, long sleeves with thumb holes, and shaping seams that flatter the torso. She tested sizing (chose a UK 10) and explains how sizing changes the fit: size down for a body-hugging look popular on TikTok, size up for a relaxed, still-form-fitting feel. Her only real caveats are skepticism about the viral “BBL” claim — sizing and fabric can slightly enhance curves but won’t magically reshape your bum — and that the trend aspect isn’t why she’d buy it. Overall the review is warm, measured, and recommends the jacket primarily for comfort, fit options, and everyday wear rather than hype.
PureWow’s Stephanie Meraz is clearly impressed and genuinely enthusiastic about the lululemon Define Jacket. After three weeks of walks, workouts and errands she praises its sculpting, comfortable fit (preferring to size up), durable nylon‑Lycra blend, thoughtful details like thumbholes, pocket zippers and a zipper garage, and easy-care durability; she calls it versatile for gym, lounge, and everyday wear and even notes its viral “snatched waist” effect. Her only real caveat is that sizing runs small and can be tricky, so trying it on is wise. The tone is upbeat and approving throughout—practical, slightly giddy about the design tricks, and convincingly sold on the jacket as a worthwhile, long-lasting staple rather than a fleeting trend.
Lauren Cunningham at Refinery29 is genuinely positive about the Define Jacket. She likes it for everyday comfort and stretch — calling it soft, second-skin cozy and easy to move in — and praises thoughtful details like padded zips, long sleeves with thumb holes, and shaping seams that flatter the torso. She tested sizing (chose a UK 10) and explains how sizing changes the fit: size down for a body-hugging look popular on TikTok, size up for a relaxed, still-form-fitting feel. Her only real caveats are skepticism about the viral “BBL” claim — sizing and fabric can slightly enhance curves but won’t magically reshape your bum — and that the trend aspect isn’t why she’d buy it. Overall the review is warm, measured, and recommends the jacket primarily for comfort, fit options, and everyday wear rather than hype.
PureWow’s Stephanie Meraz is clearly impressed and genuinely enthusiastic about the lululemon Define Jacket. After three weeks of walks, workouts and errands she praises its sculpting, comfortable fit (preferring to size up), durable nylon‑Lycra blend, thoughtful details like thumbholes, pocket zippers and a zipper garage, and easy-care durability; she calls it versatile for gym, lounge, and everyday wear and even notes its viral “snatched waist” effect. Her only real caveat is that sizing runs small and can be tricky, so trying it on is wise. The tone is upbeat and approving throughout—practical, slightly giddy about the design tricks, and convincingly sold on the jacket as a worthwhile, long-lasting staple rather than a fleeting trend.
Lauren Cunningham at Refinery29 is genuinely positive about the Define Jacket. She likes it for everyday comfort and stretch — calling it soft, second-skin cozy and easy to move in — and praises thoughtful details like padded zips, long sleeves with thumb holes, and shaping seams that flatter the torso. She tested sizing (chose a UK 10) and explains how sizing changes the fit: size down for a body-hugging look popular on TikTok, size up for a relaxed, still-form-fitting feel. Her only real caveats are skepticism about the viral “BBL” claim — sizing and fabric can slightly enhance curves but won’t magically reshape your bum — and that the trend aspect isn’t why she’d buy it. Overall the review is warm, measured, and recommends the jacket primarily for comfort, fit options, and everyday wear rather than hype.
YouTube
12 LEADING EXPERT & INFLUENCER REVIEWS
Mia MaplesMia Maples liked the Define Jacket overall and was pleasantly surprised by how closely Amazon’s dupe matched it. She praised the jacket’s flattering, slimming seams, thumbhole/Cuffins-style hand coverage, and warm, substantial fabric, and said the fit felt true-to-intent (though the dupe ran a touch roomier). Her tone was upbeat and impressed—calling the knockoff “ridiculously” similar—while noting color and minor back-panel differences and that some dupes use slightly different, less athletic-feeling fabrics. Bottom line: Mia views the Amazon option as a strong, cost-saving alternative if you don’t need the exact Lulu material.
Jess McKayJess McKay is clearly positive and fond of the Define jacket overall. She praises Luon for structure and Nulu for buttery softness, calls the Luon classic durable and flattering, and likes details like cuffins, thumbholes, zipper garage, locker loop, and the emergency hair‑tie zipper pull; she recommends sizing up if you dislike a tight fit. Jess also balances enthusiasm with practical notes: Nulu is delicate, care matters, some variants feel less compressive, and new/relaxed styles may suit different needs. Her tone is enthusiastic but measured, aimed at helping viewers choose the right Define version for their lifestyle.
Mia MaplesMia Maples liked the Define Jacket overall and was pleasantly surprised by how closely Amazon’s dupe matched it. She praised the jacket’s flattering, slimming seams, thumbhole/Cuffins-style hand coverage, and warm, substantial fabric, and said the fit felt true-to-intent (though the dupe ran a touch roomier). Her tone was upbeat and impressed—calling the knockoff “ridiculously” similar—while noting color and minor back-panel differences and that some dupes use slightly different, less athletic-feeling fabrics. Bottom line: Mia views the Amazon option as a strong, cost-saving alternative if you don’t need the exact Lulu material.
Jess McKayJess McKay is clearly positive and fond of the Define jacket overall. She praises Luon for structure and Nulu for buttery softness, calls the Luon classic durable and flattering, and likes details like cuffins, thumbholes, zipper garage, locker loop, and the emergency hair‑tie zipper pull; she recommends sizing up if you dislike a tight fit. Jess also balances enthusiasm with practical notes: Nulu is delicate, care matters, some variants feel less compressive, and new/relaxed styles may suit different needs. Her tone is enthusiastic but measured, aimed at helping viewers choose the right Define version for their lifestyle.
Mia MaplesMia Maples liked the Define Jacket overall and was pleasantly surprised by how closely Amazon’s dupe matched it. She praised the jacket’s flattering, slimming seams, thumbhole/Cuffins-style hand coverage, and warm, substantial fabric, and said the fit felt true-to-intent (though the dupe ran a touch roomier). Her tone was upbeat and impressed—calling the knockoff “ridiculously” similar—while noting color and minor back-panel differences and that some dupes use slightly different, less athletic-feeling fabrics. Bottom line: Mia views the Amazon option as a strong, cost-saving alternative if you don’t need the exact Lulu material.
Jess McKayJess McKay is clearly positive and fond of the Define jacket overall. She praises Luon for structure and Nulu for buttery softness, calls the Luon classic durable and flattering, and likes details like cuffins, thumbholes, zipper garage, locker loop, and the emergency hair‑tie zipper pull; she recommends sizing up if you dislike a tight fit. Jess also balances enthusiasm with practical notes: Nulu is delicate, care matters, some variants feel less compressive, and new/relaxed styles may suit different needs. Her tone is enthusiastic but measured, aimed at helping viewers choose the right Define version for their lifestyle.
Mia MaplesMia Maples liked the Define Jacket overall and was pleasantly surprised by how closely Amazon’s dupe matched it. She praised the jacket’s flattering, slimming seams, thumbhole/Cuffins-style hand coverage, and warm, substantial fabric, and said the fit felt true-to-intent (though the dupe ran a touch roomier). Her tone was upbeat and impressed—calling the knockoff “ridiculously” similar—while noting color and minor back-panel differences and that some dupes use slightly different, less athletic-feeling fabrics. Bottom line: Mia views the Amazon option as a strong, cost-saving alternative if you don’t need the exact Lulu material.
Jess McKayJess McKay is clearly positive and fond of the Define jacket overall. She praises Luon for structure and Nulu for buttery softness, calls the Luon classic durable and flattering, and likes details like cuffins, thumbholes, zipper garage, locker loop, and the emergency hair‑tie zipper pull; she recommends sizing up if you dislike a tight fit. Jess also balances enthusiasm with practical notes: Nulu is delicate, care matters, some variants feel less compressive, and new/relaxed styles may suit different needs. Her tone is enthusiastic but measured, aimed at helping viewers choose the right Define version for their lifestyle.
Mia MaplesMia Maples liked the Define Jacket overall and was pleasantly surprised by how closely Amazon’s dupe matched it. She praised the jacket’s flattering, slimming seams, thumbhole/Cuffins-style hand coverage, and warm, substantial fabric, and said the fit felt true-to-intent (though the dupe ran a touch roomier). Her tone was upbeat and impressed—calling the knockoff “ridiculously” similar—while noting color and minor back-panel differences and that some dupes use slightly different, less athletic-feeling fabrics. Bottom line: Mia views the Amazon option as a strong, cost-saving alternative if you don’t need the exact Lulu material.
Jess McKayJess McKay is clearly positive and fond of the Define jacket overall. She praises Luon for structure and Nulu for buttery softness, calls the Luon classic durable and flattering, and likes details like cuffins, thumbholes, zipper garage, locker loop, and the emergency hair‑tie zipper pull; she recommends sizing up if you dislike a tight fit. Jess also balances enthusiasm with practical notes: Nulu is delicate, care matters, some variants feel less compressive, and new/relaxed styles may suit different needs. Her tone is enthusiastic but measured, aimed at helping viewers choose the right Define version for their lifestyle.
Mia MaplesMia Maples liked the Define Jacket overall and was pleasantly surprised by how closely Amazon’s dupe matched it. She praised the jacket’s flattering, slimming seams, thumbhole/Cuffins-style hand coverage, and warm, substantial fabric, and said the fit felt true-to-intent (though the dupe ran a touch roomier). Her tone was upbeat and impressed—calling the knockoff “ridiculously” similar—while noting color and minor back-panel differences and that some dupes use slightly different, less athletic-feeling fabrics. Bottom line: Mia views the Amazon option as a strong, cost-saving alternative if you don’t need the exact Lulu material.
Jess McKayJess McKay is clearly positive and fond of the Define jacket overall. She praises Luon for structure and Nulu for buttery softness, calls the Luon classic durable and flattering, and likes details like cuffins, thumbholes, zipper garage, locker loop, and the emergency hair‑tie zipper pull; she recommends sizing up if you dislike a tight fit. Jess also balances enthusiasm with practical notes: Nulu is delicate, care matters, some variants feel less compressive, and new/relaxed styles may suit different needs. Her tone is enthusiastic but measured, aimed at helping viewers choose the right Define version for their lifestyle.
Forum Reviews
CUSTOMER REVIEWS FROM 1 FORUM
Redditors generally like the Define Jacket but have mixed feelings. Many praise its flattering, slimming fit, lightweight packability and versatile style—people wear it for travel, workouts, and everyday outfits—while others call out tight sleeves, limited warmth, and sizing inconsistencies (some size up for layering). Design debates center on fabric choices (Nulu vs Luon), pilling, removal of vented backs, and cheap-looking gold zippers; plus frustration about limited plus sizing. Overall users find it fashionable and useful as a light layer, but buyers caution about fit, fabric care, and paying full price unless you truly need its specific silhouette.
Many comments
In-Depth Review
Highlights
- •Sculpting silhouettePromoted as creating a snatched waist.
- •Distinct fabric optionsMarketed as Luon and Nulu variants.
- •Four-way stretchDesigned to move with the wearer.
- •Thumbholes and CuffinsDesigned to keep sleeves down.
Considerations
- •Sizing runs smallCan feel uncomfortably snug; size up.
- •Limited layering spaceStretch doesn't replace extra room.
- •Delicate fabric wearNulu variants pill or snag easily.
- •Care sensitivityNeeds gentle washing to preserve feel.
Early real‑world feedback is still limited, so take early impressions as helpful but not definitive. Known for premium athleisure, lululemon positions this jacket as a polished, performance‑ready layering piece that bridges studio, commute and travel use—think warm‑up laps, brisk walks, and everyday athleisure. In the sections that follow we’ll unpack why reviewers and testers focus on the jacket’s slim, body‑skimming silhouette, its choice of Luon vs. Nulu fabric blends, and the practical tradeoffs those fabrics present for stretch and four‑way mobility during movement. You’ll also see how its sweat‑wicking, water‑resistant finish balances breathability with light weather protection, and how thoughtful details like zippered pockets and an elastic zipper pull affect day‑to‑day usefulness. If you care about fit, fabric feel, or sleeve and closure function, review those topics closely—your ideal size and fabric choice can make this feel either like a tailored staple or an overly snug midlayer.
Fit and silhouette
The Define fits like a snug, sculpting layer meant to skim the body for a polished look. Reviewers and experts consistently note the slim, body‑skimming cut and the jacket’s ability to create a flattering waist definition, while also warning that the sleeves and chest run tight for those wanting room to layer. If you prefer less compression, try sizing up; that advice is reinforced by hands‑on testers who found a larger size more comfortable without losing the intended shape.
Sleeve features
Sleeve details are small touches that noticeably improve usability during movement. The Define includes thumbholes and fold‑over Cuffins that keep sleeves down and add hand coverage, features praised across reviews for practical warmth, while the reinforced cuff fabric reduces wear at stress points. Users report these elements work as advertised, though tight sleeve fit can limit comfort so the sizing recommendation to size up applies if you want full hand mobility plus these features.
Fabric hand‑feel
The Define comes in distinct fabric families with noticeably different feels in real use. The classic Luon is praised for a structured, durable nylon‑Lycra blend that holds shape over time, whereas Nulu variants offer a buttery‑soft, second‑skin texture that feels plush but can pill or snag more easily. Experts and reviewers agree the brand claims about comfort are supported in wear, though durability trade‑offs favor the denser Luon for long‑term resilience.
Closure and pockets
Functional hardware and storage make the Define useful beyond looks for daily life and workouts. The jacket offers zippered pockets for secure phone and keys and a chafe‑reducing zipper garage at the collar, plus an elastic zipper pull that doubles as a hair tie in a pinch, all of which experts highlight as thoughtful construction choices. Some reviewers note minor zipper wear after heavy use, so while build quality is generally high, expect careful laundering to preserve these details.
Moisture control
The Define balances light weather protection with breathability for active days and commutes. The Luon-based pieces provide sweat‑wicking performance and dry relatively quickly after exertion, and the material’s water‑resistant finish sheds light drizzle without feeling clammy. Reviewers and running testers confirm the jacket breathes well, but keep in mind it isn’t insulated, so it’s best used as a midlayer rather than a primary cold‑weather coat.
Stretch and mobility
This jacket is made to move with you without bagging out over time, which matters for workouts and everyday use. The Luon/Lycra construction delivers four‑way stretch and reliable recovery so seams stay flattering during motion, while reviewers highlight the fabric’s high elasticity for comfortable arm movement. The practical downside is that the tight fit limits layering space, so the stretch helps but doesn’t replace sizing up when you want extra room underneath.
Conclusion
Taking stock after reviewing fit, fabrics and function, here's the practical verdict: the Define delivers a confidently sculpting silhouette that buyers and testers praise for its flattering seams but warns that the slim fit can feel restrictive if you plan to layer, so sizing choices matter; its Luon and Nulu options give distinct hand-feel trade-offs—Luon for structure and longevity, Nulu for buttery softness that may pill; built-in four-way stretch preserves mobility for workouts yet doesn’t replace the need for a roomier size if you want bulk underneath; practical touches like thumbholes, zipper garage and secure pockets elevate daily use and make it a smart pick for studio-to-street wearers who value tailored styling and thoughtful details, while those seeking heavy insulation or carefree low-maintenance fabrics should consider alternatives.
Feature Scores
This reflects reviews and ratings from established critics, journalists, and users who have evaluated the item. Their opinions provide a comprehensive assessment.
Performance
Warmth Insulation
2/5
Weather Resistance
3/5
Durability
4/5
Breathability
4/5
Mobility Fit
5/5
Fastening Reliability
4/5
Value
Price to Quality Ratio
4/5
Versatility
5/5
Longevity Cost Per Wear
4/5
Design
Aesthetic Style
5/5
Fit and Flatter
5/5
Functional Details
5/5
Health
Non Toxic Treatments
TBD
Thermal Comfort Regulation
4/5
Safety
Visibility Reflective Elements
1/5
Secure Closures
4/5
Sustainability
Recycled Material Use
TBD
Repairability
TBD
Responsible Sourcing
TBD
End of Life Recyclability
TBD
Experience Style
Ease of Care
3/5
Customization Options
2/5
Packability Convenience
4/5
Specifications
This section outlines the product's key facts, covering essential features, details, dimensions, materials, and any unique characteristics that define its functionality and usability.
Performance
Value
Design
Safety
Sustainability
Experience Style
Frequently Asked Questions
10 Questions
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Answer to find your best matches.
