The Pump Sack 25L offers a larger capacity for quick and efficient inflation of your sleeping mat. Despite its 105 g weight, it is easy to carry and store. Made from robust materials, it ensures durability and reliable performance. It also functions as a dry bag, providing additional storage options._• Easily inflate a lightweight airbed without introducing humidity• Dual function - Drybag and pump sack• Built-in valve to remove air after the drybag is closed• XL nozzle for high air flow• Lightweight• Fits Robens Peak valve• Extra large air capacity