SBR blended NR upper with polyester lining|Abrasion-, air cushioned, and slip-resistant 100% natural rubber lug sole|Highly chemical resistant rubber upper|Achilles tendon and ankle protection|14" height plus 2" nylon cuff to seal out debris, and dust|Snug fit design to provide extra comfort and safety and reduce incidences of ankle roll-over|Compatible with ice studs|Ultra flexible: Exceeds 305,000 Flex Rating|Ergonomic insoles (VF23) included