CSA Grade 1 protective steel toe cap Weatherproof leather is an industry-leading 2.5 mm thick, yet 'breathes' for absolute comfort Dual-density polyurethane midsole and thermo-polyurethan (TPU) outsole: weatherproof, durable, lightweight, and provides reliable certified traction XRD™ footbed for all-day comfort and support Puncture resistant mid-soles by Lenzi: lighter, safer, more flexible, more comfortable and warmer than steel Injection-molded soles -- no adhesives to come unglued, no stitching to rot Heat, slip, oil, acid, and electric shock-resistant sole Heat-formed heel for a snug fit Comfort EVA removable footbed with XRD™ in the heel pad Canadian Standards Association (CSA) Approved Blundstone 164 Work & Safety Boot Crazy Horse Brown