The latest fall drop is here: find fresh inspiration to move. Shop Fall 2026

Designed for

Casual

Why you’ll love this

Up for adventure and ready for downtime. Our fan-favourite Define Jacket has a feel-good fit that can do it all.

Define Jacket *Luon

Details

Slim Fit, Hip Length

  • Skims your body
  • Sits below the waistband for moderate, everyday coverage

Product Features

  • Zippered pockets
  • Thumbholes and Cuffins™ keep sleeves down and chills out
  • Locker loop for easy hanging
  • Zipper garage keeps chafe in check
  • Elastic zipper pull doubles as an emergency hair tie

Cottony-Soft Feel, Luon™ Fabric

  • Cottony soft
  • Sweat-wicking
  • Four-way stretch
  • Breathable
  • Added Lycra® fibre for stretch and shape retention

Materials & Care

  • Lining: 56% Polyester, 33% Coolmax Polyester, 11% Lycra Elastane
  • Body: 87% Nylon, 13% Lycra Elastane
  • Machine Wash Cold
  • Do Not Bleach
  • Tumble Dry Low
  • Do Not Iron
  • Do Not Dry Clean
  • Wash With Like Colors

Chat with a product expert

Get personalized help with sizing, fit, product comparisons, gift ideas, and more.

Reviews

4.5

(10300)

Fit based on reviews: True to size

Small

True to size

Large

18 hours ago

Great Jacket for Gym

This is the best jacket known to humankind. Please bring in back in more colors and a size 16.

Size Purchased:14Usual Size:14Fits:True to size

Response from lululemon

17 hours ago

We can feel the love for the Luon Define, and hear you loud and clear on wanting more colours and a size 16. A favourite this good deserves more options—consider your vote officially cast.

4 days ago

Bring Back Define Luon In More Colors!!!!!

This is hands-down, the best jacket that has ever existed. Don’t get me wrong. I appreciate and do purchase the Nulu Define jacket, but I wish Lululemon design team would bring back the Luon Define as well! This jacket offers more structure and helps hide imperfections in the body and offers a little more thickness. I miss the days when Lulu offered Define in a variety of different materials. It’s high time to bring it back!

Size Purchased:8Usual Size:6Fits:Runs a bit small

Incentivized review

jms10

Response from lululemon

4 days ago

We hear you on missing that thicker, more structured feel and having more fabric options to choose from. Consider your very enthusiastic vote for a Luon comeback officially cast.

2 weeks ago

It’s a good jacket and u should try it out

I love the jacket so much and yea

Size Purchased:14Usual Size:14Fits:True to size

Response from lululemon

2 weeks ago

Lots to love about a jacket that never goes out of season—peak style and comfort.

4 weeks ago

White Luon Define Jacket

I ordered this jacket in white since i already have one other Luon define jacket in sunny coral. I do prefer this over the Nulu one but it’s just preference. I’ve had my other Luon define jacket for over 3 years and it’s in perfect condition. Looking forward for more colors in the Luon define jacket!

Size Purchased:0Usual Size:0Fits:True to size

Response from lululemon

4 weeks ago

We love to see your collection growing—thanks for sharing the love.

1 month ago

Perfect

It's amazing, highly recommend

Size Purchased:6Usual Size:S/MFits:True to size

Response from lululemon

1 month ago

Amazing and recommendation-worthy? That’s Define love in a nutshell.

1 month ago

A Closet Staple

The Define Jacket is one of those pieces that everyone needs in their closet. It’s incredibly flattering, fits beautifully, and instantly makes you look put together. I love that I can throw it on with leggings for something casual or wear it out and still feel polished. The quality is amazing and the fit is timeless. Definitely worth it — a true Lululemon staple!

Size Purchased:10Usual Size:8Fits:True to size

Response from lululemon

1 month ago

Some pieces join the closet—the Define Jacket becomes the closet.

Viewing 6 of 10300