NIX S GTX is SIDI's premium winter road cycling shoe, adorned by those who seek the perfect fusion of speed and warmth. Designed for cyclists worldwide, these shoes are meticulously crafted to elevate the road cycling experience in cold weather. The high-tech upper construction made with Gore-Tex PFC free and fleece, ensures a sleek and aerodynamic profile, while the sole, with a stiffness level of 9, delivers optimal power transfer with each pedal stroke.Gore-Tex EPE membrane delivers eco-friendly weather resistanceThis winter-proof shoe offers optimized thermal regulationNUUN 001C dials are precision-milled from aluminum for strength and minimal bulk. Their aerodynamic shape reduces drag, while SIDI s integrated handle mechanism allows high-torque tightening when activated. The system also functions seamlessly even when the lever is closed, ensuring consistent, micro-adjustable fit with every turn.Firmor surround technology stabilizes the ankle and foot with a personalized fitA reinforced toe protects from rocky terrainWrapper closing system provides a streamlined and secure enclosureThe R2CC composite sole with a stiffness level of 9, allows riders to unleash their power and last over timeMillennium fitItem SpecificationsActivityCyclingCleat Bolt Pattern3-BoltClosureDial/VelcroColorBlack/BlackDefined ColorBlackGender/AgeMen'sShoe Size (EU)45Water ProtectionWaterproof SIDI Nix S GTX Cycling Boot - Men's, Black/Black Winter / Boot EAN: 8017732876027