The West Biking Saddle Bag is a medium-sized seat bag designed for cycling, made from durable 600D polyester and TPU material. It features a zip closure, waterproof design, and BOA technology for a secure fit. With a capacity of 0.5L, this bag is ideal for storing essential items while on a bike ride. Weighing just 93g, it is lightweight and easy to attach to the saddle, providing convenience and practicality for cyclists.