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 pearlized buttons. Longer length can be worn out or tucked in. Mens style includes loose pocket. Sizes: 6 24. Colours: Black, Navy. Cares: Extras.