Features of the Altra Men's Wahweap Shoe From gym to crag to trailhead to dinner, the wahweap is ready to take you there Comfortable and soft 75% hemp Upper which is both functional and sustainable Add to this already awesome shoe, the MaxTrac Outsole is in. sipedin. for Technical multi-surface traction Climbing-style wrapped toe for added function and durability Perfect combination of grip, traction and durability that will eat up gnarly terrain like a boss