Northwave Celsius Boot is perfect for road cycling on cold winter days. It features a Gore-Tex membrane, effectively keeping water out. The boot is well-insulated to keep your foot warm during cycling. The carbon-reinforced sole has a stiffness index of 8 out of 15. It fastens with a rotary buckle, ensuring there are no pressure points on the foot. The Climaflex collar keeps wind and water out while providing additional insulation around the ankle.