Large chambered day pack with integral bladder backpack inside.  Insulated bladder pack is removable for day hikes.  Just unhook shoulder pads, remove from larger pack, reattach should pads and go hiking. Contoured shoulder straps with Velcro bladder hose securing straps and sternum strap.

Front mesh pocket for sweatshirts or other essentials.  Made of high tech diamong ripstop nylon.  Padded back for comfortable treks.  Waist belt with quick release buckle.  Side compression straps..  Comes with 2 liter bladder with hose and patented bit valve.