Down is the layer of fine, soft feathers found underneath the exterior feathers of some birds. Down is used as a natural thermal insulator and padding in a wide range of merchandise such as winter jackets, sleeping bags, footwear, and bedding. Down is lightweight and can be packed tightly into small spaces making ideal for outdoor gear. The loose structure of down feathers traps body heat which helps to insulate the body against the cold, while providing excellent breathability. The quilted design found in most down garments helps keep the insulating material evenly distributed inside the garment. Although natural down is the main material used in high quality cold weather garments, some manufacturers produce down alternatives made from synthetic materials such as polyester which is used in more affordable merchandise.
The light, high lofting feathers in this Vest float just
off your core, trapping heat without you knowing anything's there. Until, of course, you take off the Vest (and quickly put it back on). Its 800 fill power down ...
Warmth without work: our new sleeveless version of the Better
Sweater; this vest has its characteristic wool like knit face, luxurious fleece interior and the rugged durability of polyester fleece.
Featuring an innovative shell material, our Down Sweater Vest is
the lightest insulation we know of for staying warm in spastic alpine conditions. The minimalist design practically floats, and is so compact it stuffs into its own mesh lined ...