【Ultra-light Material】Carbon Fiber T800 + PU Leather Cover.It is Sweat-Resistant and Waterproof and Shockproof. 【Professional Design】Center Cutout Offers Anotomic Relief and Ventilation,This Bike Seat Relieving Pressure on The Perineum and Providing Airflow and Comfort During Long Rides. 【Comfortable & Breathable】The Foam Padding Provides Ultra Comfort and Save You From Cycling Pain.And Hollow-Out Design Can Reduce The Material in The Middle of The Saddle, Make it Lighter and Breathable. 【Size 】270x143mm (10.8x5.7inches), Carbon Rail Diameter: 7.9mm, Weight: 121g (0.3 LB), Weight Capacity: Up To 100kg. 【Universal Compatible】This Bike saddle compatible with Mountain bike, Road bike, TT bike, BMX bike and Household bike.