Two liter, vest style hydration pack with a lightweight, ergonomic design delivers near bounce-free comfort and easy function. This vest pack features ample pockets inside and out, a rubberized bite valve with an on/off lever that clips magnetically to the pack, and safety features such as an emergency whistle and night-time reflective strips. Our vest-style pack was built with the PCS unit in mind. This roomy pack has a built-in stretch-mesh pocket for the PCS Retrofit kit (item number 126070), rubberized hose portals and remote control pockets so the PCS unit will install perfectly. Product Highlights: • Insulated hydration reservoir pre-installed• Two liter reservoir capacity• Misting system not included• Drinking tube with bite valve• Vest style hydration pack• Made from breathable, water-resistant materials• Lots of storage for gear and devices• Compatible with all PCS mods & attachments | ExtremeMist Complete Hydro Pack Large - Grey | The House