Gregory Mountain Products Alpinisto 50 Backpack Fusion Flex Suspension-Main pack body closure with single anodized hook for mazimum durability Stowable crampon pocket with TPU protection panel-Dual ice axe attachment system compatible with all modern tool head designs Top pocket designed with occipital cutout for optimal helmet clearance Main pack body closure with single, anodized hook for maximum durability Removeable Bivy Pad-Rope Strap-Haul loops-Gear loops and ice clipper slots-Dual ski slots-Sled pull attachment points-Hydration hose port with locking zipper