This bundle includes two Outdoor Products Tadpole Hydration Packs - one in Black/Violet Tulip/Acid Lime and one in Black/Bright Blue. Both packs are made from durable polyester fabric and have a capacity of 3.5L. The key features common to both packs include a 1.5L reservoir to keep you hydrated on adventures, heavy duty zippers and cord pulls, a top carry handle, compression straps, lightweight mesh shoulder straps for comfort, and plenty of storage with a roomy main compartment, top stash pocket, and front compartment with key clip. The Black/Violet Tulip/Acid Lime option provides a stylish color combo for the outdoors. The Black/Bright Blue option offers a more understated look while still providing vivid blue accents. With this bundle, you'll receive two great hydration pack options to fuel your active lifestyle. The included reservoirs ensure you'll stay hydrated wherever your adventures take you. The storage capacity and pockets organize your essentials during everything from hiking and biking to travel and commuting. Having two different stylish packs allows you to coordinate with various outfits and activities.