Adidas Lady Kanadia TR4 Trail Running Shoes Air Mesh EVA Tongue - for maximum ventilation and comfort to keep your feet cool and comfortable Breathable leather upper combined with a midfoot overlay to give you a great fit and comfort Non Slip Lining - for comfort and performance on rough and extreme terrain, esnureing your feet do not slide in the shoe and cause blistering or injury adiPRENE+ - for protection from harmful impact forces and great cushioning AdiWEAR outsole - increases the durability of the sole unit of the shoe.