Intended for situations where warmth-to-weight is a primary concern, the Neutrino 600 is well suited to summer alpine trips and long multiday treks. The Neutrino range comprises lightweight, minimalist down-filled sleeping bags. Refined to maximum warmth without increasing weight, the updated design has chevron shaped baffles to ensure the down is held over the centre of the body and prevents down migration while the trapezoidal chambers eliminate cold spots. Perfect for summer alpine climbing, the Neutrino 600 is hand filled in Derbyshire and contains the highest quality 800FP ethically sourced European Goose Down. It is made using the lightweight, yet durable Pertex Quantum - this allows the bag to have an impressively small pack size but quickly loft for instant warmth. The ‘mummy taper’ shape and angled footbox keep overall weight low without compromising on warmth or comfort and still allow for movement. The Neutrino 600 has an ergono