FORMA Adventure Boots (Black, 47 EU, 13 US) Full-grain oiled leather upper with vintage finish DRYTEX waterproof and breathable liner Lightweight construction Adventure dual-density anti-slip lightweight rubber sole Plastic gear pad protection Adjustable straps with VELCRO closure Unbreakable GH plastic buckles Special rigid nylon midsole with steel shank Reinforced ankle area with TPU protection Extra soft polymer padding with memory foam Anti-bacterial replaceable insole. (not recommended for use with kick start bikes)