The PISTON by Mack is a classic slip-on boot with a ScuffCap to improve durability. The PISTON is ideal for workers that have to kneel as part of their work routine. Steel toecap, anti-static, fuel oil & slip resist-C, H2O resistant. AS/NZS2210.3 (Class I S1 SRC). Lightweight and durable, what more could you ask for in a work shoe?