Daypack has top and bottom zippered openings for full access and is backed by Air Bridge padding that keeps weight off the back for ventilation The large capacity main compartment can hold our GCH03 Tripod Stool and HF15 Trekking Pole when it is not in use Note this bag is hydration compatible and can hold up to 3L (H20) hydration reservoir Composed of our BG278 Urban Peak® 35L Daypack which is produced out of quality 600D Polyester, 420D Twill and Honeycomb Dobby with water resistance Stool and. 9.5" D x 12" W x 22" H