FXD WB-4 Nitrolite™ Slip On Work BootsComfortable and hard wearing work boot from FXD. Features u pdated outsole design, external abrasion panel repositioned to provide medial and lateral support, double bind elastic gusset for increased elastic durability, padded tongue and achilles entry points, silicone tab grippers for ease of entry, slip, oil and heat resistant rubber outsole, composite safety toe, coolmax engineered lining is moisture wicking and accelerates drying, poron midsole