Size:S=US(4-6), M=US(8-10), L=US(12-14), XL=US(16-18),2XL=US(20-22); See details in rich description.please refer to the size chart above the description. Material: The workout top is made of 87.5%Polyester and 12.5%Spandex,quick-drying fabric actively wicks moisture away from the skin, keeping you cool and dry, comfy and fresh all-day. Design:Long sleeve workout top for women provides professionally certified UPF50+ sun protection, effectively protecting against skin-damaging UV rays. Matching: The versatile design of the running top makes it easy to incorporate into a variety of styles, with yoga leggings and sneakers/with casual jeans/with a sports belt and wrist guards for a personalized sporty look Occasions: Suit for a wide range of scenarios. Covering the gym, yoga class, hiking, running, camping, fishing or outside running, its lightweight material and comfortable fit also make it a great choice for casual everyday wear Womens Long Sleeve Workout Tops