High Agility Weight Kinetics: designed to utilize natural bodyweight movements efficiently to improve agility, speed, and safety. Engineered to be lightweight without sacrificing durability, this boot features our custom Flex-Lite Support System build to deliver market-leading performance to weight ratio. SPECIFICATIONS Meets the EN ISO 20347 standard for occupational footwear with fuel oil resistance and SRC rated slip resistance Leather / durable nylon mesh upper HydroGuard waterproof full bootie construction Bloodborne pathogen resistant YKK side-zipper in durable Vislon pattern for easy on and off fit with hook and loop tab-stay closure Gusseted tongue to keep dirt and debris out Durable polymer speed lace system Tactical performance non-slip laces Flex-Lite Support System build technology Moisture-wicking lining with AEGIS antimicrobial protection Removable custom fit EVA insole with Poron performance cushioning pads TPU external heel counter for stability Lightweight molded dual density EVA midsole with shock absorption zone for comfort and fatigue control Exclusive airport-friendly Flex-Lite molded nylon stability board with torsional support ridges for the ultimate in lightweight, flexible support and performance Custom-molded thermoplastic heel counter and toe box for instant comfort and lateral support Tec Tuff abrasion resistant toe and heel panel protection H.A.W.K. outsole: lightweight, arch ladder grips, toe grips for climbing, oil resistant, non-marking rubber, exceeds the ASTM F2913-11 safety standards for slip resistance