Designed for the needs of river guides and professional paddlers, the Keen Men's Zambezi Sandal sports an amphibious design that's equally suited for charging Class IV rapids and meandering down lazy rivers. Its rubber toe cap acts as a protective barrier between your feet and slippery riverbeds strewn with toe crunching rocks and logs. TPU reinforced upper panels resist abrasion for long lasting use. Perhaps most impressive with this river friendly sandal is its one pull adjustable strap. This system consists of a high strength strap that easily adjusts with a single pull for a secure, dialed fit. Plus, this sandal releases with the simple push of a buckle for quick bailing. Not using these in the water on a daily basis' No problem. The sandal's textured EVA footbed cradles your feet in all day comfort with its anatomical arch support. Smooth microfiber strap lining wicks moisture for quick drying, non irritating performance. You'll also find a textile reinforced rubber sole with large traction lugs for sure footed grip over slippery stream beds and smooth urban surfaces alike.