Deuter Hydro Lite 3.0 Backpack with 3L Reservoir HexLite 210/ Super-Polytex Imported Zipper closure 1" high 1" wide These Hydro Lite models with hydration bladder are small and perfectly formed. The thermally lined main compartment keeps anything cold - or warm Mesh shoulder straps and Airstripes back system for all-round ventilation. With the zip tabs secured by press studs, the bladder tube can exit directly from the main compartment for instant use Safety blink loop. 3M reflectors at the front, sides and back. Zipped front pocket. Waist strap