Mountain Hardwear Phantom WINDSTOPPER -40F/-40C Sleeping Bag
For alpine traverses, expeditions in severe conditions and travels in the coldest temps, the Mountain Hardwear Phantom WINDSTOPPER -40F/-40C sleeping bag is light and warm with 800-fill-power down.
Key Details
- 800-fill-power down insulation for optimal warmth-to-weight ratio and compressibility
- RDS®-certified down insulation
- GORE WINDSTOPPER® fabric is breathable, highly water-resistant, windproof, and ideal for severe conditions
- Expedition mummy cut efficiently adds space at your feet to allow for gear storage in freezing temps
- Lightweight but durable #5 zipper with anti-snag for easy entry and exit
- Oversize dual zipper draft tubes prevent cold spots along the zipper
- Shaped draft collar blocks the escape of warm air from inside the bag
- Oversize down-filled face gasket extends into the hood to comfortably block drafts
- Oversize hood allows for full cinch closure in freezing temps
- Contoured footbox follows natural foot position for maximum warmth and comfort
- Vertical sidewall baffles for added warmth and maximum loft
- Glow in the dark, reflective zipper pull
- Nylon compression sack and mesh storage sack included
Imported.
View all Mountain Hardwear Backpacking Sleeping Bags| Best Use | Mountaineering Backpacking |
|---|---|
| Temperature Rating (F) | -40 degrees (F) |
| Temperature Rating (C) | -40 degrees (C) |
| Weight | Regular - Left Zip: 4 lbs. 8.4 oz. Long - Left Zip: 4 lbs. 11.3 oz. |
| Ultralight | Yes |
| Shell | GORE WINDSTOPPER 30-denier 2-layer nylon ripstop 57 g/m2 |
| Zipper Location | Left |
| Insulation Type | Down |
| Fill | 800-fill-power RDS-certified goose down (fluorine free) |
| Fill Weight | Regular - Left Zip: 2 lbs. 15.5 oz. Long - Left Zip: 3 lbs. 1.1 oz. |
| Sleeping Capacity | 1-person |
| Lining | 15-denier nylon ripstop 34 g/m2 |
| Sleeping Bag Shape | Mummy |
| Fits Up To (in.) | Regular - Left Zip: 72 inches Long - Left Zip: 78 inches |
| Shoulder Girth (in.) | 66 inches |
| Hip Girth (in.) | 62 inches |
| Stuff Sack Size | 11 x 20 inches |
| Stuff Sack Volume | 31.1 liters |
| Compressed Volume | Regular - Left Zip: 15.4 liters Long - Left Zip: 16 liters |
| Gender | Unisex |
| Sustainability | Down certified to the Responsible Down Standard (RDS) |
Write a Review
Adding a review will require a valid email for verification
Customer Images
One of the best mummy bags that money can buy!
I bought this bag for extreme winter camping here in Alaska, and will be using it in all of our winter camping videos on our YouTube channel (Alaskan Nomads). Amazing bag! I first bought the North Face Inferno -40C bag and ended up returning it after how easily the zipper snagged. I’m happy to say that the zipper on this bag barely snags at all. The GoreTex shell is another feature that is really nice, and makes a big difference in keeping the bag dry and retaining full loft. I went with the long version. I’m 6ft 2in tall and 260 lbs, and I have plenty of room to move around and even roll over in the bag when fully zipped up. Believe it or not, in don’t feel claustrophobic in this bag, which says a lot because I traditionally don’t enjoy mummy bags. This is by far the nicest, warmest, and most comfortable bag I have ever owned and I’m extremely happy that I bought it.
My Go-To Sleeping Bag for High-Altitude Expeditions
My go-to sleeping bag on my recent 8000m expedition to Kangchenjunga. I’m 6'2", 185 lbs, and the long size fit me perfectly with plenty of room to move around. The bag is exceptionally durable and incredibly warm with its 800 fill goose down. The real game changer was the GORE-TEX WINDSTOPPER shell. With condensation inside the tent and occasional water drips, the bag stayed completely dry. Despite its warmth, it compresses down well, making it easy to pack for higher camps. This is without a doubt one of the best expedition sleeping bags available.
Super Warm
This sleeping bag keeps you extremely warm at the most extreme cold temperatures. I’ve used it at the highest camps on Denali, Vinson, and Aconcagua and felt the same warmth as in my bed. It stays pretty clean and doesn’t hold on to odor much. The only modification I would make is to have a zipper on both sides for better venting. There’s a left zipper but if you sleep on your right side deep in the bag it could feel a little stifling not being able to unzip on that side. Overall, I would highly recommend it for alpine mountaineers.
Great Bag
This bag is above and beyond what I expected, extremely durable and lifesaving, used it at ambient -40 degree temps and i stayed warm the entire time
Need help choosing gear?
This item pays for membership!
$159
10% Reward
on this and every eligible full-price item*
+
$30
Bonus Card
valid for 30 days after joining*
=
$189
Value
Keep shopping
