Roofers and paving contractors often perform in high-heat environments. Ashby work boots feature premium construction, full-grain leather and a heat-resistant outsole that resists melting up to 475ºF for rugged, all-day protection on the job. USA Made Trout Brook Full Grain Leather Handcrafted by our S.B. Foot Tanning Company, this leather is crafted exclusively for our Irish Setter brand and is named after the trout brook which flows just outside the back door of the tannery in Red Wing, Minnesota.