Black Diamond Speed Zip 33

Black Diamond Equipment says:
Redesigned shoulder straps and thermoformed backpanelZippered clamshell top opening with zippered top pocket and tuck-away rope strapMicro ice-tool PickPockets(TM) and removable 20 mm crampon strapsStrippable design: removable hipbelt with fixed webbing belt, removable framesheet and removable foam bivy padHydration compatible Tuck-away Helmet CarrierInstructions | Black Diamond Equipment Speed Zip 33 Pack Backpack Size Medium/Large, in Graphite