Features high-quality nubuk leather wwaterproof and breathable with Gore-Tex More Season Membrane (80 % polyamide, 20 % polyester) loop at back for comfortable entry shoelaces and side zipper air insole, anatomically shaped elastic, pleasantly soft shaft edge Height of shaft: approx. 20 cm Safety ankle protection on both sides (PHTP-TR) padded on the inside of the ankle with open-cell special foam leather-reinforced bootleg for clutch operation a plastic reinforced inner sole with a hot-dip galvanised steel inlay, that allows you to gently roll your feet rubber sole with heel