Stay “light" years ahead with the Crocs Classic Hiker Clog. Crafted with synthetic resin, these clogs offer an extremely lightweight feel and classy look that wears well with all your casual outfits. Whether it's a hiking trip or backyard picnic, these waterproof clogs are a perfect fit for all occasions. Every walk is a walk on cloud nine with the Crocs Classic Hiker Clog. Upper: Synthetic resin, synthetic fiber (bottom): Synthetic resin.