Rab Neutrino 0C / 32F Sleeping Bag Warm Nights, Light Pack Three-season mountain camping and bikepacking overnights demand a bag that packs small, weighs little, and actually keeps you warm when the temperature drops to freezing. The Neutrino 0C delivers on all three. It uses 800FP European goose down locked into helix-shaped baffles that stop the fill from shifting and eliminate cold spots, so warmth stays consistent across the whole bag. The outer shell is zoned by weight: heavier Pertex(R) Quantum on the base and footbox takes the abrasion, lighter Pertex(R) Quantum on top lets the down loft fully. Hand-filled in the UK and never compressed before use, this bag arrives with its loft intact and ready to perform. Features800FP European goose down with L. O. F. T 3D(TM) baffle construction helix-shaped baffles prevent down migration and eliminate cold spots Zoned Pertex(R) Quantum shell 10D on top for loft and packability, 20D on the base and footbox for durability on rough ground Down-filled collar and cinchable hood seal in heat around the neck and face when temperatures drop Fluorocarbon-free DWR finish water-resistant protection without PFAS chemistry | Rab | Neutrino 0C / 32F Sleeping Bag | Graphene/dark Pollen | Lng Lz