The KUHL OPTIMIZR(TM) Men&';s Short Sleeve Shirt features a quick-dry, moisture managing, stretch fabric for superior comfort and performance. Equipped with seasonal friendly colors and built-in sun protection (UPF 40), this short sleeve also sports a modern reduced collar for an elevated, casual style. ADVANCED FABRICS:a Fabric 1: 86% Polyester, 14% Spandex | 130 GSM CARE INSTRUCTIONS:a Machine wash colda Do not bleacha Tumble dry lowa Iron low temp DIFFERENT BY DESIGN:a Mini stripe melange patterna Reduced modern collar DIFFERENT BY CONSTRUCTION:a Tapered fita Durable grosgrain ribbon through center-front buttonsa UPF 40 Sun Protectiona Four-way mechanical stretcha Quick dry, with high moisture-wicking capabilitiesa Get yourself men&';s sun protection shirt that performs and looks great in the mountain or the officea Imported