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

Trending

Selected location
United States (USD)
Your current selected location is United States and your order will be billed in USD.
Select your location

Trending

All
Back

    To navigate, use the left and right arrow keys. To expand, press Enter or Space.
    • Beach Ball Blue/Mirror Silver/Mirror Silver
    • Beach Ball Blue/Mirror Silver/Mirror Silver

    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 *Nulu

    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

    Buttery-Soft and Weightless Nulu™ Fabric

    • So buttery soft, it feels weightless
    • Sweat-wicking
    • Four-way stretch
    • Breathable
    • Added Lycra® fibre for stretch and shape retention

    Materials & Care

    • Body: 81% Nylon, 19% Lycra Elastane
    • Lining: 56% Polyester, 33% Coolmax Polyester, 11% 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.

    Get connected

    Reviews

    4.6

    (5817)

    Fit based on reviews: True to size

    Small

    True to size

    Large

    16 hours ago

    Jacket

    Very confortable fits very nice very stylist

    Size Purchased:6Usual Size:Medium

    Response from lululemon

    15 hours ago

    Comfort you can cozy up in.

    20 hours ago

    Beautiful fit, and colour

    Love this jacket the white is very flattering to the complexion and the fit is perfect. It did run a bit small so I ordered a size 10, which corresponded to the measurements in the size chart. Normally wear a size 6 tops.

    Size Purchased:10Usual Size:6Fits:Runs small

    Response from lululemon

    19 hours ago

    Your new favourite layer has entered the chat.

    21 hours ago

    Fits like a glove

    Awesome. First purchase but will definitely buy again different colors

    Size Purchased:6Usual Size:6

    Response from lululemon

    20 hours ago

    An instant favourite you'll be wearing on repeat.

    2 days ago

    Very flattering

    Flattering fit. Snug but not too tight. I’m 5’6 athletic build 125 and size 8 works for me

    Size Purchased:8Usual Size:6 or 8 in topsFits:True to size

    Response from lululemon

    2 days ago

    Snug in all the right places.

    3 days ago

    So cute

    Comfy and I love the length

    Size Purchased:10Usual Size:6Fits:Runs a bit small

    Response from lululemon

    3 days ago

    Comfort that draws you in, and a length that seals the deal.

    4 days ago

    Please make a fleece-lined Define!

    I do enjoy the Nulu Define, but would love to see the design team bring out other iterations & weights of the Define jacket, as it truly is a one-of-a-kind classic staple piece. Many years ago Lulu made the Define in classic Luon as well as light-weight materials for summer. I’d love to see them bring back the original Define Luon in more colors AND versions with lightweight materials for summer weather + cozy fleece-lined versions for winter. I believe these would sell like crazy!

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

    Incentivized review

    jms10

    Response from lululemon

    4 days ago

    Thanks for taking a moment to share your feedback on the Define Jacket Nulu. We're glad to hear you see it as a classic wardrobe staple. We appreciate your thoughtful suggestions for additional fabric options, including bringing back Luon™, lightweight summer fabrics, and cozy fleece-lined versions for colder weather. Feedback like yours helps us better understand what our guests would love to see in future collections.

    Viewing 6 of 5817