The Peregrine Ultralight Summit Day Pack 25 liters is the ideal option for carrying the essentials to the top of the peak or to the store. 30D CORDURA UltraLite fabric delivers a desirable combination of qualities: durable, compact, lightweight, and weatherproof. The YKK zipper runs along the top and down one side for sufficient access to the inside. The lightweight shoulder straps provide comfort and ventilation while keeping the pack stashable. The Ultralight Summit Day Pack has a siliconized outside and a polyurethane coated inside, delivering long lasting weatherproof qualities.