The ALPINESTARS MTB Vest Descender V3 is a lightweight and robust 2.5-layer jacket designed for mountain biking. It features a windproof (5,000 g/m - 24h) and waterproof (5,000 mm H₂O) Ripstop fabric to ensure maximum protection against the elements. The strategically positioned ventilation opening at the back helps regulate body temperature, keeping you comfortable during your rides. The jacket also includes a microfleece textile collar lining for added comfort. The front zipper is equipped with a YKK zipper and windproof flap, while all zippers have easy pull tabs for convenience. The back is designed to offer additional lumbar spine coverage with an elastic band for a secure fit. Additionally, the jacket includes a storage pocket with Velcro closure to conveniently carry the vest under your bike seat.