CamelBak Classic 70oz Hydration Pack. A minimalist hydration pack with a larger than life pedigree, the CamelBak Classic meets your thirst quenching needs for rides of 2 hours. Its simple, low profile design boasts a 70oz reservoir with external access and a breathable back panel. There's also a secure storage pocket, tail light tab and sternum strap for load stability. All in all it's the perfect choice for entry level and performance cyclists alike. Includes the Antidote Reservoir the ultimate cure for dehydration.