This fully waterproof hiking boot is ready for the most extreme adventures! The Xcursion Fusion is a sleeker and more rugged version of the best-selling original. All Xero Shoes feature a wider, foot-shaped toe box that lets your toes spread and relax, a non-elevated “zero drop” heel for proper posture, low-to-the-ground design for perfect balance and agility, and a flexible sole that gives you “just right” protection so you can bend, move, flex, and safely Feel the World in total comfort.