OSPREY SKIMMER 28 Wide-mouth, bucket-style main compartment opening Adjustable sternum strap with magnetic bite valve attachment Dual upper side compression straps with trekking pole capture Dual lower trekking pole attachment loops Internal hydration sleeve , hose port and Osprey Hydraclip for easy reservoir hanging Dual hipbelt pockets Front shove-it pocket Underlid zip pocket Dimensions: 20.9H X 10.4W X 9.4D IN. Weight: 1.68 LBS.