Oasis Men's Ethan Walking Shoes Leather Rubber sole Rubber outsole creates a stable, proper stride and keeps your heel in a neutral position. Trek-Dry vamp lining provides a dry, healthy foot environment by dispersing moisture. Natural Skintex lining treatment keeps your skin smooth and soft with antibacterial silver ions. Leather upper, microfiber sockliner with bamboo and ceramic fibers treated with silver... EVA insole and midsole. Care: Buff with leather cleaner. Wipe with dry cloth, etc.