Live up to the Arc'teryx Men's Phasic Evolution Crew Shirt and push yourself harder, explore farther, and go on more backpacking trips this summer. This light tee utilizes Arc'teryx's new Phasic FL-X fabric for enhanced moisture management to keep you comfortably dry when you're working up a sweat. Arc'teryx gusseted the underarms to assure full mobility, even with a heavy pack on, and the smooth flatlock seams prevent the pack from chafing your shoulders.