Osprey Packs Momentum 30 Daypack 420HD nylon A zippered harness pocket featuring an internal, retractable key clip and an adjustable sternum strap with rescue whistle buckle round out the harness Built-in, high visibility rain cover designed to protect your bag's contents in even the most adverse conditions A reinforced blinker light attachment tab found at the base of every Momentum Series pack Quickly secure a helmet to your pack with the Lid Lock system Top zippered pocket on the front panel with an internal key clip and organizational sleeves