Durable and deformation resistant The bike seat with backrest uses a PU leather surface and a density sponge to provide a comfortable, secure grip for long distance rides. It is designed to resist deformation to maintain support over time. Backrest supported comfort The seat features a backrest design with wider and thicker padding to support the back, relieve pressure, and reduce discomfort during extended cycling sessions. Flexible and fit Adjustability includes a length extension of up to 4.5 inches and a flexible backrest height, offering a fit for a range of riders and ensuring comfort on long rides. Promotes relaxed posture The backrest helps maintain proper posture and reduces fatigue, enabling a more comfortable ride over time. Key attributes Function: bike seat with backrest that enhances comfort and support on long rides Material: PU leather surface with density sponge for durability and grip Size and padding: wider and thicker padding to improve comfort during prolonged use Performance: backrest design relieves pressure and supports the back to prevent discomfort Adjustability: length can extend up to 4.5 inches and the backrest height is adjustable Use scenarios Long road rides and daily commutes Ideal for long distance cycling where back support reduces fatigue and improves endurance on paved roads. Weekend tours and multi hour rides Suitable for extended cycling days where posture support and padding help maintain comfort throughout the ride. City riding and daily errands Provides sustained comfort during regular transportation and errands, helping to reduce fatigue during longer outings.