Allowing a constant flow of air to provide ventilation to the feet, the upper of the shoe has a breathable mesh surrounding it to keep you feeling fresh and comfortable. As you begin to exercise, the air within the shoe will start to warm up, and the material will encourage it to escape out. Once it escapes out it is then replaced by cooler air, and this constant cycle will keep you feeling ventilated. This will also allow vapour from sweat to escape out, keep your feet feeling dry and comfortable. The material covering the forefoot is thicker, which will reduce the risk of injury to the toes from bumps and knocks. The shoe has no-sew overlays, which firms up the rear of the shoe, whilst not providing any irritation to the feet. A traditional lacing will allow you to find the perfect fit, and the flat-lying and comfortable tongue will keep you feeling comfortable. An NB Response 1.0 performance insert will provide the shoe with soft and personalised cushioning.