20277947 Filson Men's Twin Lakes Short Sleeve Sport Shirt A favorite for warm-weather action, whether casting in high-desert streams, hiking into alpine lakes, or poling a skiff across the tied flats. The Twin Lakes material is woven with a bit of built-in stretch for complete freedom of motion. COOLMAX in the cotton blend wicks moisture away from the body, dries quickly, and blocks harmful UV rays. Chest pockets are covered with buttoning flaps for security, and the left side features a slotted tool patch to keep accessories handy. Embroidered eyelets under the arm aid ventilation and in the pocket bottoms aid drainage. Button-front closure. Spread collar. Lightweight for warm-weather comfort Moisture-wicking and quick-drying Elastane in weave provides slight stretch Button-flap chest pockets UPF 20+ sun protection Embroidered eyelets under arms and at pocket bottoms Fabric 3.7-oz. | 50% COOLMAX Polyester / 47% Cotton / 3% Lycra Product Care Machine wash cold, tumble-dry low heat Do not bleach Iron warm if needed