Comfort: -4°C (25°F) Limit: -10°C (14°F) Extreme: -29°C (-20°F) The Neutrino Pro 700 embodies the Alpine spirit. Perfect for four season adventures, its high warmth for weight makes it ideal for winter alpinism. Designed with a narrow mummy fit, for reduced bulk and pack size, and constructed with lightweight, high performance materials. The Neutrino Pro 700 is filled with 700g of 800FP, goose down, stabilised in chevron shaped baffles, cleverly designed to reduce the amount of fabric needed compared to traditional horizontal baffles. The trapezoid boxwall baffle construction allows the down to fully loft, eliminates cold spots, and maximises warmth. Additional baffles along the length of the zip and around the neck decrease heat loss and with an adjustable drawcord around the hood you can cinch the bag around your face. The Pertex® Quantum Pro outer is made of recycled nylon and offers wind and weather resistance, ideal for coping with condensation and damp conditions in snow holes or