The Arcteryx Atom SV Hoody is a warm insulated jacket that is ideal to be used as a super-warm mid-layer in cold conditions, or as a st&-alone piece in warmer conditions. Significantly warmer & more protective than a fleece jacket, the Atom SV Hoody packs small, is resilient & has an excellent warmth-to-weight ratio. Features Fabrics: Gossamera/ Corefloft 100 insulation DWR finish Breathable, lightweight tricot underarms Athletic fit Hip length 2 hand pockets with zippers Internal chest pocket with zippers WEIGHT: 475g Glossary Gossamera 100% Nylon 30denier mechanical stretch nylon ripstop with an air-permeable PU coating & a DWR face finish. It is a light & breathable stretch fabric with great water repellency & wind resistance. DWRA finish applied to a fabric that will bead-up water on its surface to stop it soaking into the fibres. This maintains breathability & shortens drying times. Coreloft 100100% Polyester A lightweight, breathable, compressible & thermally efficient insulation that has excellent loft retention, & comes in 4 weights: 60g/m 2, 80, 100, 140.