Features of the Black Diamond Speed Zip 24L Backpack New BD in. X-ripin. 210d Nylon body fabric with UTS coating Welded front abrasion patch for improved protection against rock, ice and crampon spikes New custom metal dogbone ice tool attachment with micro ice-tool PickPockets and removable 20 mm crampon straps Zippered clamshell top opening with zippered top pocket and tuck-away rope strap Strippable design: removable frame sheet / bivy pad and removable hip belt with fixed webbing belt Redesigned Shoulder Strap harness for improved comfort and durability Moisture-wicking redesigned back-panel Rain cover available separately