Never worn with tag lululemon crew neck sweater rather with size zipper. Size L light weight material From the tag: City Sweat Crew 1. Everyone needs a good crew. Soft, naturally breathable fabric makes this one just that much better 2. Stretch French terry fabric is soft, four-way stretch, and naturally breathable 3. Added Lycra® fibre for stretch and shape retention 4. Hidden pocket to stash your 5. Underarm gusset for greater mobility 6. Classic fit