Define Jacket (Luon or Nulu, $118–$128 retail) is one of the most copied lululemon pieces. Genuine Define has a metal zipper pull with the lululemon logo, thumbholes with cuff tabs and a small inside pocket. This guide walks through the tag, fabric, construction and hardware checks we run on every piece.
The inside tag
The inside tag must say 'Luon or Nulu' or the fabric family that matches Define Jacket. Printing is crisp and the tag is heat-pressed on recent pieces. A sewn-in care label at the waist or collar on a recent piece is a warning sign.
Fabric and construction
lululemon's signature fitted jacket with a stand collar, thumbholes, hand pockets and a full-length zip. Available in Luon and the softer Nulu version.
Genuine Define has a metal zipper pull with the lululemon logo, thumbholes with cuff tabs and a small inside pocket.
Resale value once verified
Highest-demand jacket for resale; Grade A pieces resell at $55–$80.
Grade A pieces list at 45–65% of lululemon retail on Poshmark and eBay and sell fastest.
Buying authenticated stock in bulk
ThriftUp sells Define Jacket inside jackets & outerwear bundles and, for common styles, as single-style lots from 100 pieces. We test every zipper, check thumbholes and cuffs for wear, and inspect down pieces for leaking.
Read next
- How to Authenticate lululemon Wunder Train Leggings
- How to Authenticate lululemon Pace Breaker Shorts
- How to Evaluate a Used Clothing Wholesaler
Pricing and fee figures are indicative and change; check current platform terms. ThriftUp is not affiliated with lululemon athletica.
Frequently asked questions
Where can I buy the stock discussed in this guide?
ThriftUp sells graded A/B pre-owned lululemon from 100 pieces; message us on WhatsApp with your quantity and categories.
How current is this guide?
Updated 2026-10-13. Resale prices and platform fees are reviewed regularly.