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1.This is a new kind of bike saddle 2.the chief material is memory foam, shell fabric is soft flannel. 3.It's very suitable for the people who is into cycle racing and the office worker who always ride a bike to work. --------------------------------------------------- About memory foam About memory foam: It’s a slow rebound material. It’s a key breakthrough of protecting the human health, it has been used in many fields, such as the memory pillow, memory mattress. This kind product is more long-lift than others fast-rebound material. A authoritative rest indicated that the material wear rate of memory foam is less than 5%, and other high-resilient polyurethane material is about 10-15%. So memory foam is a new kind environmental, durable and cheap material.