Sidi Nix Cycling Boots Weather Resistance and Unmatched Stability The temperatures might be low, the streets might be wet, but you still want to go out and get some miles in. With the right cycling apparel, you can easily conquer any ride. The Sidi Nix Cycling Boots provide the perfect blend of eco-friendly weather resistance and unmatched stability with the new Gore-Tex EPE Membrane. The Millennium Fit, combined with a wrapping strap and high-density dialing system, ensures incredible stability and comfort for every wearer. The R2CC sole, with engineered inserts and reinforced toe and heel areas, guarantees durability and peak performance in the toughest conditions. The Nix features a Firmor lateral support technology that stabilizes the ankle and foot, a reinforced toe that keeps the foot always protected, and a high-density dial system that maintains tension for a secure fit. Features Gore-Tex EPE Membrane provides eco-friendly weather resistance Firmor surround stabilizes the ankle and foot with a stabilized fit Winter-proof and optimized to keep thermal balance High-density dial system maintains tension for a secure fit R2CC sole has a stiffness level optimized for power transfer SPECIFICATIONSUpper Material Gore-Tex EPE Membrane Closure type Sidi Dial Outsole R2CC Sole Cleat Compatibility3-Bolt Road Intended Use Road Sizing EUUS364375386396. 5407. 541842943104410. 54511. 5461247134813. 54914. 55015 | Sidi | Nix Cycling Boot Men's | Size 41 In Black/black