The Camelback Classic Light Hydration Pack allows you to keep hydrated on long, hot mountain bike rides and to carry what you need without the extra weight. It has a really comfortable, ventilated fit and is strong and durable. It has reflective logos across the back for safety and has extra zippered pockets to carry everything from keys and tools to food. The hydration tube can be neatly strapped away on the shoulder strap so that it does not get in your way when you tackle the technical sections. So if you are touring or mountain biking this is the perfect, comfortable lightweight carrier for your hydration and other bits and bobs when you go on your epically huge adventure!