Mens Atlas Vest From Ayacucho Fabric: 100% Nylon Insulation: 600 fill power Goose Down 90/10 down to feather ratio Zipped hand warmer pockets Elasticated arm holes Drawcord hemThe Men's Atlas Down Vest from Ayacucho offers lightweight, packable warmth, suitable for either technical or day-to-day use.The light insulation makes this vest an ideal layering piece to provide you with that extra warmth when you get to the top of your route, but also very well suited to wearing whenever you're out on a crisp, chilly day but don't need a full jacket. All the benefits of down when you don't need a big, thick, expedition layer. The construction is tailored to a less extreme level of insulation. Micro-baffles hold the light down filling precisely in place for optimum performance where big baffles would allow it to migrate, meanwhile the drawcord hem ensures the warm air doesn't escape. Perfect.