Under Armour Apparel Size Chart The Tide Chaser shirt is made with UPF 30 rated UV protection to shield you from the sun's rays. Its performance fabric is quick drying, wicks away moisture, and resists odor. Built-in 4-way stretch lets you move freely. Roll-up sleeves with button tabs let you convert it to a short-sleeved shirt. Features: - Generous, more relaxed fit. - UPF 30 protects your skin from the sun's harmful rays - Lightweight, durable woven fabric with built-in stretch for greater mobility - Material wicks sweat & dries really fast - Anti-odor technology prevents the growth of odor-causing microbes - 4-way stretch construction moves better in every direction - Secure, button closure chest pockets - Roll-up sleeve loop & button - Shaped hem - 86% Polyester/14% Elastane - Only available to ship within the USA