Modern performance stretch fabric in a slightly western style that won’t rub or chafe your chest and underarm zones when casting from sun-up to beer-:30. Short-sleeved for warm-weather coolness. Tucked in with a belt, consider them proper dinner attire as well. 52% nylon, 48% polyester with double vertical pockets that hold line nippers, a phone, tippet or a can of ZYN.