Our TravelBound outsole is a lightweight siped blown rubber that offers boundless comfort. The precision knit upper of the Pixel provides support with an arch supporting open cell insole for walking comfort. Precision knit upper with soft brushed nylon lining Age - Adult Care Instruction - Spot Clean Insole Description - Arch supporting high density Open Cell PU foam allows air to flow for a cooler, healthier footbed Outsole Description - Thermally controlled rubber provides long lasting responsive cushion that keeps feet energized Product Closures - Hook and loop strap Size Description - M = Medium (B) Size Fit Information - True to Size Waterproof - Not Waterproof