The toastiest in its line, Rab's Ascent 1100 Down Sleeping Bag shields us from the mountain's bone-numbing temps. If moisture finds a way into our fabric hovel, the treated fill and exterior stop the wet from stealing our warmth. Extra cozy sleeping bag for frigid nights on the trailCompressible down insulation traps heat without the weight and heftRecycled material blocks out wind and resists moistureZip baffle and 3D collar help seal in warmthWide mummy shape and angled foot box increase comfortInternal zip pocket keeps your headlamp at the readyStuff sack and storage bag included for toting and stowingMaterial[face fabric] 30D Pertex Quantum (100% recycled nylon), fluorocarbon-free DWR finish, [lining] 20D 100% recycled nylonInsulation650-fill RDS-certified down, Nikwax fluorocarbon-free hydrophobic finishShapewide mummyZipper3/4-length, left or rightMax User Height[reg] 6ft 3in, [x-long] 6ft 6.8inShoulder Circumference[reg] 55in, [x-long] 56.6inHip Circumference[reg] 41in, [x-long] 42.6inFoot Circumference[reg] 32in, [x-long] 33inBag Length[reg] 86.5in, [x-long] 90.5inDraft Tubeinternal 3D collarPockets1 zippered internalPad RetainernoDegree-15FStorage Sack100% cotton, water-resistant baseStuff SackincludedStuff Size17.7 x 10.2inClaimed Weight3lb 12ozActivitybackpacking, camping, mountaineeringManufacturer Warrantylifetime