Looking for a high-performance and practical hydration backpack for your mountain biking outings? Check out the Thule Rail Bike Hydration. With a capacity of 8 to 12 liters, it offers generous storage space for your hydration needs, as well as for your tools, energy bars, and other essential small items. The Thule Rail Bike Hydration is designed to provide optimal comfort. Its adjustable and breathable harness system adapts to your body shape, allowing for precise adjustments and a balanced weight distribution. Its multiple pockets and compartments allow you to store and organize your belongings. With its integrated hydration system featuring a 2.5-liter water reservoir, this backpack is highly functional. It will enable you to stay hydrated easily throughout your rides. Bonus: The helmet attachments offer the possibility to carry your helmet easily when you're not riding. Features of the Thule Rail Bike Hydration 8 liters: Dimensions: 18 x 16 x 42 cm Weight: 800 g Volume: 8 liters Materials: 100% nylon Includes a 2.5-liter Hydrapak water reservoir Stay visible with reflective details and a light attachment loop Features of the Thule Rail Bike Hydration 12 liters: Dimensions: 21 x 18 x 44 cm Weight: 870 g Volume: 12 liters Includes a 2.5-liter Hydrapak water reservoir Materials: 100% nylon Stay visible with reflective details and a light attachment loop Thule Rail Bike Hydration - Hydration backpack | Hardloop