ZEMGEAR TerraTECH Ninja Slate/Sun 6 tech-band stability cradle High-tension nylon quarter panels Tech-toggle closure adjustability Breathable tech-mesh on forefoot Puncture resistant outsole layering Recycled dual-density outsole Zero-Drop & Barefoot Last Removable PORON Performance Cushioning Insole Ninja & Round Toe pattern available Sizes UNISEX Womens 5-10 Mens 5-13 Weight: Womens 5.56 oz., Mens 5.95 oz. INSOLE: Aegis Microbe Shield FABRIC: controls odor, staining, deterioration Combined to 2.5mm of PORON Performance Cushioning Foam Combined to: Industrial strength Puncture Resistant layering OUTSOLE: Dual density high abrasion rubber THICKNESS: 3.5 -4 mm YES! This style is VEGAN