Naturehike DW-90 Hiking Warm Winter Goose Down Pants is made of selected 90g quality white goose down, which is waterproof and windproof, light and warm.

Premium Material: Shell and Lining: 20D 400T Nylon. Waterproof, skin-friendly and comfortable. Fill: 90% goose down, 800 fill.
ULTRA LIGHT AND PORTABLE: These down pants are designed to be lightweight and compact. It only weighs 8.8 oz/250 g. With the storage bag, you can take it anywhere for backpacking, camping and hiking.

Elastic waistband and drawcord: Works with a variety of waste circumferences. Elasticized windproof thick cuffs at the ankle - keep the wind out.
About cleaning: For some stains, just wipe repeatedly with a towel or 75 degree alcohol swab, then towel dry. Do not machine wash, do not tumble dry.