Fourteener Hydration Pack allows for carrying hydration and a day's worth of gear.
Internal storage that provides for snacks, first aid kit, clothes and more.
Adjustable sternum strap
Stetch overflow pocket for extras.
Side stretch pocket to accomodate water bottles.

Specs:

Fabric:  Robic recycled nylon 2100 ripstop

Fit:  Belt range 29 to 53 inches

Dimensions:  28.8 x 12.2 x 8.7 inches