When you work in sub-freezing temperatures, you can't afford to compromise on your footwear protection. Primarily designed for work in refrigerated containers, blast freezers and chillers, cold-storage warehousing and transportation, the Redrock Chill delivers – with waterproof membrane construction and 800g of Thinsulate™ insulation. Purposeful and tested design details don’t end with insulation. We realize the importance of protection and testing. In addition to compression and impact testing the non-metallic, non-conductive nano-composite safety toe, the whole boot was tested at -40oC/-40oF. The fully-loaded Redrock Chill 6" boots feature the trusted traction that only the SFC slip-resistant GLADIATOR™ outsole can deliver in both indoor and outdoor environments. The premium, oiled leather upper is great looking and easy to clean. The Redrock Chill 6" NCT. We didn't compromise. Nor should you!