Product Description Elevate your road cycling experience with the Nix road cycling shoes by SIDI, designed for both men and women who demand the best. These shoes feature a versatile 3-hole pedal system compatible with SPD-SL and Look, ensuring a secure connection to your bike for efficient power transfer. With a sole stiffness index of 9 out of 10, they offer the perfect balance between rigidity for pedal efficiency and enough flex for comfort during long rides. The innovative closure system combines Velcro straps with a twist lock, allowing for quick adjustments and a snug, supportive fit that stays put no matter how hard you push. Whether you're racing, training, or enjoying a leisurely ride, these shoes will help you achieve your cycling goals with style and comfort. Product Specifications: Application:Road Pedal system:3-hole (SPD-SL / Look) Closure:Twist lock, Velcro closure Sole stiffness index:9 (out of 10) Gender:Women's, Men´s white-black | 41: Shoe size:41 Gender:Women's, Men´s white-black | 43: Shoe size:43 Gender:Women's, Men´s white-black | 44: Shoe size:44 Gender:Women's, Men´s white-black | 48: Shoe size:48 Gender:Women's, Men´s black-black | 40: Shoe size:40 Gender:Women's, Men´s black-black | 42: Shoe size:42 Gender:Women's, Men´s black-black | 44: Shoe size:44 Gender:Women's, Men´s black-black | 47: Shoe size:47 Gender:Women's, Men´s Cleat Adjustment: To find the correct ergonomic position of the feet on the pedals, we recommend using the Cleat Tool by Ergon. With this tool the length, the Q-Factor and foot angle can be perfectly adjusted. Product Features: High-performance cycling shoes designed for both men and women, perfect for road applications.Features a versatile closure system combining Velcro straps and a twist lock for a secure, adjustable fit.Equipped with a sole stiffness index of 9 out of 10, offering exceptional power transfer and efficiency.Compatible with 3-hole pedal systems (SPD-SL / Look), ensuring wide compatibility and optimal performance.Designed specifically for road cycling, enhancing both comfort and performance on long rides.Offers a blend of durability and lightweight design, suitable for competitive and recreational cyclists alike. Material Identification: white-black | 41: Lining:TextileSole:OtherUpper:Other white-black | 43: Lining:TextileSole:OtherUpper:Other white-black | 44: Lining:TextileSole:OtherUpper:Other white-black | 48: Lining:TextileSole:OtherUpper:Other black-black | 40: Lining:TextileSole:OtherUpper:Other black-black | 42: Lining:TextileSole:OtherUpper:Other black-black | 44: Lining:TextileSole:OtherUpper:Other black-black | 47: Lining:TextileSole:OtherUpper:Other Manufacturer Number: white-black | 41: 10110093 white-black | 43: 10110095 white-black | 44: 10110096 white-black | 48: 10110100 black-black | 40: 10110066 black-black | 42: 10110068 black-black | 44: 10110070 black-black | 47: 10110073 Contents: - 1 pair of SIDI Nix road cycling shoes Manufacturer: Sidi Sport S.r.l Via dei Rizzi 2/A 31010 Maser (TV) Italy https://sidisport.calicant.us/hc/it