You don’t need to be standing in the middle of a thicket to find bamboo amazing. The woody grass grows more than an inch an hour, making it a renewable resource that fuels everything from construction to modern performance fabrics like the one in this Renew Bamboo Long Sleeve Crew. Turn bamboo into performance rayon and you get a sweat-wicking, sun-blocking fabric that’s far more functional on the trail than cotton but maintains the supreme softness. We blended it with recycled polyester and spandex to enhance the wicking power and keep it moving freely as you wander the wild. Built-in UPF 50+ blocks a nasty burn on all-day forays.