Long Sleeve Sports TopMaterials87% nylon and 13% spandex The top quality activewear fabric designed to feel as soft and light as a cloud. Thumb holes protects the back of the hand and ensures the sleeves don't roll up. Sweat wicking 4 way stretch Breathable Full zipper SIZE US SIZE UK SIZE EU SIZE BUST WAIST XS 4 8 36 31 33. 5 25 27 S 6 10 38 34 34. 5 27. 5 28. 5 M 8 12 40 35 36 28. 5 30 L 10 14 42 36 38 30. 5 31. 5 XL 12 16 44 38 40 32 33