Rab Neutrino -6C / 20F Wmns Sleeping Bag Warmth Where It Counts When the temperature drops and the bivy ledge is exposed, a sleeping bag earns its reputation fast. The Neutrino is a narrow mummy-cut down bag shaped specifically for women, with a shorter length, narrower shoulder, and wider hip to match a female body contour rather than just shrinking a unisex pattern. Inside, 800FP goose down sits in chevron-shaped baffles that reduce fabric use compared to traditional horizontal baffles, and the trapezoid boxwall construction lets the down fully loft so there are no cold spots to wake you up at 2am. Additional baffles along the zip line and around the neck keep heat from escaping where you need it most. It packs down small enough to stay out of the way on approach and earns its weight once you're down for the night. Features800FP goose down insulation high warmth-to-weight ratio with strong packability for alpine and bikepacking missions Trapezoid boxwall baffle construction allows down to fully loft, eliminates cold spots, and maximises warmth Women's-specific mummy fit shorter length with narrower shoulder and wider hip for a precise, heat-retaining fit Pertex(R) Quantum outer lightweight, wind-resistant face fabric that encourages insulation to loft fully | Rab | Neutrino -6C / 20F Wmns Sleeping Bag