The SKECHERS Work McColl Comp Toe work boot has a waterproof and stain-resistant leather upper, synthetic and removable Air-Cooled Memory Foam insole, and safety toe protection for long-lasting durability and comfort that will keep you safe while you're on the job. Style number: 108004. Lace-up work boot with a composite safety toe that is rated ASTM F2412/2413-11 I/75 C/75. Smooth synthetic overlays for added structure and stability. Traditional lace-up style with fabric laces and durable metal eyelets and top hooks for a more secure fit. Padded collar and tongue added extra comfort while in motion. Soft fabric boot lining offer breathable comfort. Shock-absorbing synthetic midsole for added support. Slip resistant, durable rubber outsole meets ASTM F2913-19 SR standard under Wey/Dry Surface/Conditions only and features a lug pattern that provides excellent traction.