Whether it's casting a line or stretching into a J-stroke, a restrictive shirt has no place on the river. Which is why our Chilkat delivers perfect ease in lightweight 3.6-oz, 16% spandex/84% performance nylon fabric paired with Armpit Gussets. It's also got UPF 30 sun protection built in, plus hidden button-down collar so the wind and rays don't trouble you. Zippered chest pocket, chamois glasses wipe on the inside placket. Head up river and leave restrictions behind.