Cairn Evo 3D PRO Sandal in CharcoalThe Cairn Evo 3D Pro is the highest performing of the brand's signature sandals. Sporting a more ergonomic footbed and grippy Vibram Megagrip outsole, these are designed to go where no sandal has gone before. G hook and loop heel and front strap system creates an extra secure foothold that wont gum up in mud or pull off in whitewater 3 zones of adjustment for a secure and comfortable fit 3D footbed provides subtle support with zero drop for logging