The Pinnacle Hydration Bag is a sleek and practical 4 litre water backpack designed for cycling enthusiasts. With its black colour and unisex adult size, it caters to both men and women looking for a reliable hydration solution during their rides. The Pinnacle brand ensures quality and durability, making this hydration backpack a must-have for any cyclist embarking on a long journey. Stay hydrated and stylish with the Pinnacle Hydration Bag.