This is a must in every adventurer's wardrobe: a good extra layer and travelwear in light shell material and stretch material with a smooth surface. Lifaloft ™ is an insulating revolution that keeps you warmer with lower weight and volume thanks to the unique lifa yarn technology. Lifaloft ™ was developed together with PrimaLoft® and is a combination of Lifa® and the knowledge about synthetic insulation that is available at Primaloft®. The Lifaloft ™ insulation is based on a yarn technique that traps more air than polyester at a lower weight. The fiber does not absorb water and is naturally water-repellent without treatment due to the hydrophobic properties of the Lifa® fibers. It makes the insulation technology perfect for year-round adventures in all conditions and you stay warm even when it's wet. Less carbon dioxide emissions and water consumption compared to comparable polyester, for less environmental impact.