For those needing a steel toe, our thinsulate safety boot with calks is perfect for the logger on the go. A pure natural rubber bottom features layers of polyester and polyamid to slow chain saw penetration. It provides the most durable and crack resistant steel to bottom on the market to date. Removable thinsulate liners, 7-7 1/2 oz. leather uppers, triple stitched seams and a replacable calk sole are all standard features. ANSI approved steel toe. FITTING TIPS: Hoffmans thinsulate lined pacs tend to run small. Add 1 size to your current shoe size. (i.e. 9 or 9 1/2 would order a size 10).