Sandal from Kavat. Outer of vegetable tanned leather. Velcro straps on outside of the shoe. Inner of chrome-free vegetable tanned leather. Inner sole of leather with excellent shock absorption & breath-ability. Buying these shoes helps to reduce water & air pollution. Damaging substances have been avoided & we guarantee the least amount of environmental impact possible. Outer sole of rubber with good grip & roll over. Interior dimensions: EU34 (220mm) EU35 (228mm) EU36 (235mm) EU37 (242mm) EU38 (249mm) EU39 (256mm) EU40 (262mm)