Superfeet Men's OUTSIDE Sandals 100% Synthetic Imported Rubber sole OUTSIDE sandals help absorb impact, while supporting and protecting the foot High-impact top layer for long-lasting cushion & comfort Quick-dry strapping combines synthetic leather for structure and neoprene for comfort Non-marking outsole with slip-resistant traction helps you stay surefooted on wet surfaces Deep heel cup helps cradle and position the soft tissue to naturally absorb impact