Waterproof Membrane which seals out water and lets moisture escape Leather upper with waterproofing treatment Vibram ‘S-Line' Rubber outsole, produced exclusively for Grisport Triple Density NTA midsole, ultimate shock absorption for longer walks Internal ‘bootie' construction for ultimate water-resistance. Padded forefoot ‘flex-point', provides immediate comfort from the box Padded Collar with anti-tendonitis collar joint Bellows tongue for increased water resistance 100% waterproof laces Metal