Steel Blue Whyalla Ankle Boot The Whyalla is a 95mm men’s derby style, lace-up Ankle Boots with padded collar and tongue. A popular, 100% comfortable choice for Bricklayers, Glaziers and Sand Blasters with a TPU outsole heat resistant to 130 degrees and a 200 joule safety steel toecap. The Whyalla has anti-static properties and premium water resistant leather available in black and wheat nubuck colours.