Boot from Kavat. Outer of vegetable tanned leather. Zip & velcro strap on the inside. Inner & removable inner sole of wool. Outer sole of partially recycled rubber. Ecologically & enviromentally certified with EU- flower, completely free from chrome Teflon PTFE & other fluorinated hydrocarbons. Note: Dry off lightly with damp cloth, coat inside with wax based shoe cream to protect & preserve the shoe & leather. Interior dimensions: EU31 (202mm) EU32 (209mm) EU33 (216mm) EU34 (223mm) EU35 (229mm) EU36 (235mm) EU37 (241mm)