The ALPINESTARS MTB Descender WP Vest is a lightweight yet durable 2.5-layer jacket designed to keep you comfortable during your mountain biking adventures. Featuring a windproof (5,000 g/m² - 24h) and waterproof (5,000 mm H20) ripstop fabric, this vest ensures you stay protected from the elements. The strategically positioned ventilation opening on the back helps regulate body temperature, ensuring you stay cool and dry. A microfleece textile collar lining provides additional comfort, while the front zip with YKK zipper and windproof flap offers ease of use and additional protection. All zippers come with easy pull tabs for convenience. The extended back design provides extra lumbar coverage with an elastic band for a secure fit. It also includes a storage pocket with a Velcro closure, allowing you to carry the vest under your bike seat when not in use.