The Bivouac Down Pants are a lightweight, packable, durable, and warm option suited for extreme cold weather activities. 850 fill-power cruelty-free down provides these pants with exceptional warmth while maintaining a low weight and packability. 1.6 oz 40D silicon coated ripstop fabric treated with DWR finish Elastic cuff leg openings to fit over boots 850 fill-power Canadian Goose Down Adjustable elastic waistband with drawstrings Integrated stuff sack 100% nylon ripstop with DWR (durable water repellent) finish 850 FP cruelty-free Canadian goose down Handmade in the Montreal Ostrya Workshop Style No. 6AH002 | Blaze Orange (BOR) Regular fit. Care Guide .