VivoBarefoot Lady Neo Hydro Phobic Mesh Running Shoes air mesh, microfiber 4.0 mm Sole - This makes the shoe extremely shallow in height, meaning you are extremely close to the ground, giving amazing performance. 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. Weight: - 162g with Insole. 147g without. The Shoe is 100% Vegan.