If winter outdoor adventures are your thing you need the gear to suit the ultra lightweight Tephra Stretch Down Jacket from Berghaus is the jacket you need.RDS certified down insulation is guaranteed to keep you warm in the coldest temperatures teamed with the Reflect Technology which boosts heat up to 20% to key areas when needed you will begin to wonder how you hit the trails without it. Packed into a Pertex Quantum Shell providing elite weather protection when needed. Underarm stretch panels creates a performance fit allowing freedom of movement. There will be no stopping you on your next sub zero adventure.Jacket Type: Down Insulated JacketFabric: Pertex Quantum® shell with stretch fleece side panelsWaterproof: Water Repellent with Nikwax coated down to keep you warm even in wet conditionsInsulated: RDS certified Hydrodown with a 600 fill power content with added Reflect technology for warmthBreathable: NoWindproof: Yes guaranteed with Pertex Quantum fabricPockets: 2 lower zipped pocketsHood Style: Stretch bound grown on hoodWeight: (approx.) 499g (Size L)