Wanting more coverage doesn't always mean wanting to be warmer. We created our Chill tops to offer maximum ventilation and coverage at once—by perforating the fabric with thousands of visible pores. The result is a versatile, quick-dry top that serves as an essential layer for everything from hiking and skiing to paddle boarding and swimming. Anti-chafe, flat seams will keep you comfortable mile after mile, and smooth elastic cuffs let you wear the sleeves pushed up or at the wrist. As a base layer, you can't beat it: the fabric's wicking properties work hand-in-hand with the pores to evaporate sweat faster than ever. Straight hem sits at the hip—perfect for layering. Quick-dry fabric wicks sweat & lets water dry quickly. Fits true to size. Crewneck Material: 88% Polyester 12% Spandex. Approximate Measurements: Underarm to Underarm-18"Length-27."