Technical fibers have developed in leaps, and are close to the warmth to weight ratio of down. Thanks to the way in which synthetic materials resist the effects of moisture, the Nebula Pro is a great choice for demanding use. Rab Extended Range product: Scandinavian Outdoor offers an extended range of Rab products. Rab Extended Range products are sent to you directly from Rab's Dutch warehouse. This renewed model is made with the super popular, high quality PrimaLoft Silver Rise fiber. - Regular Rab fit for easy use with a mid layer - Surface and liner fabrics: top quality Pertex Quantum Pro Nylon - The technical insulation binds in a lot of warm air, and absorbs minimal amounts of moisture - Insulation amount in a size M jacket: 279 g - Lightweight stitch-through structure - Helmet compatible hood - Main zipper with insulating baffle underneath - Two outer pockets, one inner pocket - The whole jacket packs into its own left outer pocket - Two-way main zipper - Cuffs with Velcro adj