Lululemon Define Relaxed-Fit Jacket Luon Define Relaxed-Fit Jacket *Luon 1. A fan-favourite, redefined. We added lightweight Swift fabric to our Define jacket to create a relaxed silhouette with plenty of volume 2. Our cottony-soft Luon ™ fabric is supportive, sweat-wicking, and four-way stretch 3. Added Lycra® 4. Swift fabric on back and sleeves is lightweight, sweat-wicking, and quick-drying 5. Thumbholes and Cuffins T™ 6. Secure front pockets with a hidden phone sleeve 7. Cinch the shock cords at the hem to adjust the shape 8. Elastic zipper pull doubles as an emergency hair tie 9. Relaxed fit, hip length