Description Fly XC 100 Hydro Pack 3 Liter HydraPak brand BPA and PVC free 100 fl. oz/3 liter Elite™ reservoir with large slide top opening. Plug-N-Play™ quick disconnect for convenient tube removal. High-flow Blaster™ bite valve self-seals after each sip and features a twist on/off bar to prevent leaks when not in use. Chest harness system with Velcro™ elastic bands for flexibility. Stowable outer mesh carry-all flap. Front pocket for smaller accessories. Main compartment with two inner pocket sleeves. Cell phone compartment. Key clip. Reflective branding and zippers. Fine-tune attachments on side straps allows a custom fit for smaller riders. Larger quick release buckles for easy on and off with gloves. Strap length adjustment from the inner main compartment with Tensionlock® buckle.