UA Microthread fabric dries faster, won't cling to you, won't chafe & stretches without absorbing sweat. 4-way stretch material moves better in every direction. Material wicks sweat & dries really fast. UPF 50+ protects your skin from the sun's harmful rays. Ribbed knit collar & sleeve cuff detail with 1-button placket. Side-vent hem. Body: 61% Polyester/39% Elastarell. Collar: 100% Polyester. Do not use softeners. Use only non-chlorine bleach when needed. Tumble dry low. Do not iron. Do not dry clean. Colour: white