The Patagonia Women's Nano Puff® Vest in black is crafted from polyester with a DWR fabric type. This sleeveless puffer jacket features a stand-up collar, full zip closure, and PrimaLoft insulation for warmth. Handmade with a classic fit, this vest is ideal for travel during winter, fall, or spring seasons. The size XS vest with a short length is part of the Patagonia product line, designed for a timeless and versatile look.