The Blast Insulated Boot is crafted to withstand extreme cold while providing superior safety. It has an ASTM F2413-18 composite safety toe to ward off impacts and compressions. Ultra-Thinsulate insulation of 400 grams keeps your feet warm and cozy in chilliest temperatures, while the HyDry waterproof membrane keeps them dry in wet conditions. Equipped with a slip-resistant rubber outsole with ice gripping plugs, the boot provides reliable traction in slippery environments. The PU memory foam insole offers cushioning and support for long-lasting comfort and the ASTM F2413-18 M/I/C EH rated boot comes in 8-12, 13, 14, and 15 sizes of D(M) & 2E(W) widths.