Lululemon Back In Action Long Sleeve Shirt Top Black Size 20 NWT A classic long sleeve you'll reach for again and again. The scooped back hem at length when you want a bit more coverage. Made with breathable Pima cotton fabric for the ultimate and softness and stretch. Added Lycra fiber for stretch and shape retention. Relaxed fit and longer in the back Size 20 it is new with tags. Laid flat it measures approximately 31 inches armpit to armpit and the length from the top of the shoulder down the back is 30 inches. I Athleisure, lounge, soft, relaxed, casual, around the house, jersey knit, comfy, comfortable Athletic, sporty, retrosport, gym, workout, technical, performance, gorpcore, activewear, utility, practical, cargo, organic, natural, granola girl, hiking, camping, outdoor, running, jogging, walking, cycling, bicycling, peloton, weight lifting, basketball, track, field, practice, yoga, trail, pilates