The Berghaus Extrem Micro 2 0 Down Jacket is a super-versatile lightweight piece of packable insulation ideal for climbing skiing and trekking to the extremes The insulation in this jacket is the newly updated version of Berghaus world-first hydrophobic down technology - Hydrodown powered by Nikwax It is a PFC-free hydrophobic down that provides water repellency for up to 16 hours and is RDS certified for guaranteed ethical sourcing of the goose down In addition to the insulation Berghaus have also used body-mapping technology to ensure the correct balance of warmth is distributed exactly where it s needed This Micro Down Jacket is part of Berghaus Extrem range and has three zipped pockets and a fully adjustable hood that is helmet compatible with a stiffened pieak and internal stretch gaiter for improved fit grip helmet and prevent cold air entry over the top of the head making this an incredibly reliable and super-lightweight jacket ready to accompany you on your next extreme adventure