Dryshod Men's Steel Toe Adjustable Gusset Waterproof Work Boots - Adjustable Gusset Protective Work Boot. Safety matters! Steel-toe protection and all-day comfort! Adjustable gusset style for big calf comfort. Solid rubber, long-wearing outsole for traction and durability ANSI-rated steel toe for safety Meets ASTM F2413-11 M I/75 C/75 EH Meets ASTM-471 for Oil Resistance and ASTM F-1677 for Slip Resistance Rigid triple-layer toe and heel reinforcements Yellow treatments to indicate safety Double achilles heel and instep reinforcement for comfort and protection Removable molded EVA sockliner Features unisex sizing Steel shank for added arch support Customize to fit larger calves for optimum comfort and protection with the expandable gusset and adjustable locking strap. Extra room also accommodates layers of clothing being tucked into the boot 5mm Desoprene Foam Insulated Boot 100% Waterproof Style: STG-UH