Vivobarefoot Men's Off Road Hi-M 100% Leather Rubber sole 2.5mm Base | 4.0mm Lug Height - This makes the shoe extremely shallow in height, meaning you are extremely close to the ground, giving amazing performance along with deep, rugged lugs for superb traction. 3.0 mm Press EVA Insole - helps to keep the shoe extremely low profile but also gives a tiny bit of cushioning with the EVA. Ultra Thin Puncture Resistant Sole - Provide maximum proprioception and protection to your feet. Anatomic Toe Box - The Shoe is shaped to allow the foot to behave as it would if bare - to expand and contract with every step exercising the feet keeping the feet in good conditions. Neutral Last - Zero drop heel and no pitch to give natural gait to your running style.