New. The CamelBak Hydrobak 1.5L 50oz Hydration Pack in Red is a durable and compact backpack designed for outdoor activities like biking and hiking. This unisex pack features a lightweight construction and a single pocket for easy access to your essentials. With a lifetime manufacturer warranty and insect repellent treatment, this hydration pack is ideal for summer adventures. Stay hydrated and comfortable during your outdoor excursions with the CamelBak Hydrobak.