Single aluminum stay for lightweight, comfortable load support Breathable mesh backpanel wicks moisture away from your body to keep you dry and comfortable Removable bivy pad doubles as pack structure and sleeping pad X-bungee on pack face for lashing New 420D Enduratek is highly abrasion resistant and durable to withstand the abuse of backcountry travel Structural tool tubes with SR buckle for quick access to axes, probes, shovel handles and tools Adjustable ski slots on side allows for a range of ski widths New Orca lid with two pockets and clear map pocket under lid prevents items from falling out even when zipper is left open Haul loops and compression straps Side pockets to store little items Hydration compatible: contains bladder sleeve and hose port Side compression straps lengthen to carry a snowboard on pack face