Tech and features. Ideal for weekend micro-adventures and winter walking, this practical yet stylish down parka is a go-to in chilly weather. It’s built with Pertex® 3D Weave Technology, which means the baffles can be woven from a single stretch fabric without any stitching. This improves down lofting, increases wind resistance, reduces weight, and allows the material to flex as you move. Combined with 650FP down and a windproof outer fabric, it’s perfect for bundling up on the trail or by the campfire.