These are the lightweight shoes that keep feet up to 11º cooler than typical sneakers. Proprietary micro-perforated nylon mesh uppers wick moisture away from the foot in concert with porous membranes built into the outsoles that provide air circulation. Independent scientific testing has shown them to reduce footbed temperatures up to 10.8º and reduce perspiration by 50%. These machine-washable shoes are made with high-density polyurethane microfiber toe- and heel-boxes with interiors lined with soft hydrophobic polyester that dries in minutes. Their perforated EVA insoles are made with naturally odor-resistant bamboo--the grass' cross-sectional structure creates micro-cavities that circulate air and absorb moisture, keeping the insole cool and dry. The durable EVA outsoles have carbon rubber panels in the forefoot and heel to ensure reliable footing. Easy on/off hook-and-loop enclosures with two eyelets for optional lacing. Men's. Whole sizes only. White. (5 1/2 oz.)