A winter road cycling shoe for those who don't want to stop training in extreme weather conditions. Made from the waterproof and windproof Koala Gore-Tex membrane, it keeps your feet warm and perfectly insulated even in the coldest conditions and the upper shoe with its "overlap" construction stands for reduced wind resistance by enclosing the foot evenly and without pressure points, helping you to transmit every watt of power with pinpoint accuracy. Excellent power transfer is guaranteed thanks to the fibre-reinforced NRG Air Carbon sole with a stiffness index of 8.0. The new Easyfit upper made from extremely elastic Gore-Tex Rattler membrane and highly insulating neoprene ensures unrivalled freedom of movement and maximum protection from the elements. The ergonomic heel shape with its anatomical fit, thanks to the latest thermoforming technology in combination with the Arctic 4Layer insole made of EVA + aluminium and EVA + fleece, ensures outstanding thermal insulation. The 360° reflective inserts ensure greater safety in poor visibility conditions. The reinforced and abrasion-resistant toe area in combination with the SLW3 twist fastening system, which is the only one of its kind with micro-step ratcheting for millimetre-precise adjustment and adaptation of the boot, make the boot a long-lasting companion.