Wrinkle Free, Fitted Stretch, Long Sleeve with Button Cuffs, Cotton/Polyester Blend. Tiny dark spot on right sleeve near button and light spots on both sleeves, all shown in pictures with tape measure, the spots are hard to see. Measurements taken with shirt laying flat:   Chest  (Pit to Pit): 21.5" Sleeve from shoulder seam : 24.5" Length from shoulder : 26" Smoke Free Home