Logger caulk or cork boots Specifications Shaft Height - 10" Uppers - Smooth premium 8oz oil tanned leather Lowers - Roughout premium 8oz oil tanned leather Thread - high strength, TechnoraA(R) fire resistant over 900 AdegF Hardware - traditional high quality eyelets and speed hook combination Insole - genuine oak tanned leather Midsole - genuine oak tanned leather Arch support - leather Heel - 4-lift Logger Spring Heel Sole - Cork/Caulk Origin - handmade in the USA