NWOB Easy to clean Fluid-resistant Endlessly comfortable Easy slip-on Squeak-free High performance OrthoLite inserts fight odor and bacteria— washable inserts made of Clarino- which is a microfiber fabric that mimics real leather Weight: 10oz per shoe Heel-to-Toe Drop: 10mm Heel Cushion: 36mm All Clove shoes models have been certified as slip resistant, according to ASTM F3445 standards.