Sizes: XS  3XL, 5XL; Fabric: 100% Certified recycled PET polyester,BIZ COOL Breathable sports knit,155 GSM,UPF Rating: 50+; Features: Breathable BIZ COOL sports knit keeps you cool and dry,Knitted rib collar with recycled pearlized buttons,Longer length can be worn out or tucked in,Mens style includes loose pocket,This garment is made from 100% recycled polyester resulting in the equivalent of 10 plastic bottles being diverted from landfill;