Upper made of microfibers and nylon Inserts on the upper made of abrasion-resistant material Gore-Tex membrane provides excellent waterproofness and breathability EVA foam insole covered with a layer of silver yarn with antibacterial properties VIBRAM® Apex rubber sole provides good grip Heel Lock - a system thanks to which the foot remains in one position, without slipping in the shoe Double Damper - two-part cushioning thanks to the midsole and an internal element that absorbs shocks in the heel area Loop on the heel for easier removal/insertion Add (Anatomically Directed Design) - increased comfort and fit thanks to the shoe construction that takes into account the anatomical features of the foot: Additional comfort thanks to the upper that bends in the same places as the foot More space for the big toe at the front of the upper Asymmetrical collar for better stability, especially when overcoming difficult terrain Shoe tongue that stays in place thanks to its shape Insoles in ankle area for greater support and stability