When space is at a premium and weight an important concern the reduced pack size and low weight of a Helium bag makes it the perfect companion for your trip.Using newly developed Alpine Fit, Down Control hood and Trapezium foot piece these bags pack an unrivalled technical pedigree into a minimalist package. Sitting alongside long-proven Mountain Equipment technologies these new designs ensure the bags maximise their warmth whilst remaining serious lightweight options. The Helium range provides outstanding all-round performance for backpackers, trekkers and cyclists who need unmatched quality and performance with minimum weight and bulk.FitAlpine Fit with tapered lower leg for improved thermal efficiency and weight reduction.Trapezium 44 baffle trapezoid foot piece for excellent down control and loft with low weight.DC5 Hood5 baffles and anatomical fit provide high levels of warmth and down control with low weight.Solus CollarSolus collar for optimum lightweight insulation with down draft tubes.Slanted Box Wall ConstructionOffers a stable and superlight structure with excellent stability and down controlBaffle Walls30g baffle walls for down control and structure.Zip¾ length side zip with anti snag baffleStorageSupplied with lightweight stuff sack