Simms Coldweather Long Sleeve ShirtSimms Sportswear Size ChartIf you're looking for the ultimate Fall, Winter, and Spring fishing shirt, look no further than the Simms Coldweather LS Shirt. With a 100% Polyester Flannel shell, and waffle-lined micro-fleece on the inside, the Coldweather Shirt is made for cold days on the river. Other features include UPF50 sun protection, and chafe-free, off-shoulder seaming for added comfort during all day fishing adventures.FABRIC TECH: 100% polyester flannel shell; 100% polyester waffle-fleece linerFEATURES and BENEFITS:a Wicking and UPF50 a Two fly box compatible chest pockets with hook-and-loop closure a Off-shoulder seaming for comfort and articulation a Slight drop tailAPPROX. WEIGHT: 18 oz.STYLE FIT: Traditional FitSIZES: S-2XL