ALTOS-S 0˚F Mummy Sleeping Bag
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ALTOS-S 0˚F Mummy Sleeping Bag
4882 Wiley Post Way
4882 Wiley Post Way
Salt Lake City UT 84116
United States
Free shipping on orders over $75*
Step up your comfort. The ALTOS-S Sleeping Bags are designed with you in mind. The water-resistant fill keeps you warm and comfortable. These bags provide more room for your shoulders, legs, and feet.
Step up your features. The ALTOS-S Sleeping Bags are compact when carrying them, but so lofty when it’s time for bed. It’s a backpacker’s ultimate solution.
Step up your value. The ALTOS-S Sleeping Bags are not only warm, comfortable and easy to pack, they also have features you don’t usually see at this price, like a sustainable plant-based fill, vaulted footbox, zipper draft tubes, and a 3-piece hood. Get the ALTOS-S Sleeping Bag and step up your adventure.
More details about the ALTOS-S 0˚F Mummy Sleeping Bag:
| Best Use: | Backpacking |
| Material Overview: | 20D / 400T Polyester mini Ripstop, 20D / 380T Polyester Taffeta, and Spectrum S - “SH” Micro Fiber Batting (with 30% Sonora) |
| Zipper Type: | 3/4 standard two-way left zipper |
| Shell Material: | 20D / 400T Polyester mini Ripstop |
| Liner Material: | 20D / 380T Polyester Taffeta |
| Fill Material: | Spectrum S - “SH” Micro Fiber Batting (with 30% Sonora) |
| Dimensions (in use): | 84" x 32" (at the shoulders) x 17" (at the foot) |
| Dimensions (stored or packed): | 14" x 8" x 8" |
| Pack Weight: | 3.5 lbs. |
| Storage Method: | Compression Sack |
| Temperature Rating: | 0F / -18C |
| A Note About Temperature Ratings: | Most of our sleeping bags list an extreme rating. Because of this, it’s important to consider your sleeping preferences when selecting a bag. If you like things toasty, we recommend adding 30° degrees to the listed temperature rating when selecting a bag. For help selecting the perfect bag, contact us. |
| Country of Origin: | China |
| Care Instructions: | Learn how to care for a TETON sleeping bag. |
| For California Residents: | Prop 65 Warning |
Please note: We do not ship to P.O. boxes. Please provide a physical shipping address when checking out.
We ship from our warehouse in Salt Lake City, Utah via various methods, including USPS and FedEx. If an item is available for sale, it is in stock in our warehouse and will ship as soon as the payment processes, usually within 1 business day of your order.
Once shipped, orders typically take approximately 3 to 5 business days to arrive.
Standard shipping is free for orders $75 and above—after discounts are applied and before taxes and shipping are calculated—to destinations in the continental 48 US states.
When you place an order, you will get a confirmation email. Once your order has left our warehouse, we will email your tracking information to you. Your carrier can give you an estimated arrival date. Most carriers provide step-by-step updates if you request them.
Express shipping is available via FedEx. Rates are calculated by package weight and destination. These options and their rates will be available during checkout.
Built TETON Tough
Our Lifetime Warranty
All of our products are backed by a limited lifetime guarantee. Our products are built to withstand whatever nature throws at you, but rest assured, our warranty will help get your gear repaired or replaced if anything goes wrong.
Product Reviews
- AJAdam J.Verified ReviewerRated 5 out of 5 starsSep 28, 2024Not really 0F but excellent bag
I would not truly call this a 0F bag but it’s definitely my first choice for winter camping when the expected temps are around the freezing mark. It’s also very light and has become my go-to sleeping bag for summer missions when I know it’ll get cold overnight and I don’t want to even consider the possibility of being cold. Took it to basecamp elevations during summer alpine climbs on Baker, Rainier and other Cascades. Worth the money, just don’t bank on it as a 0F.
TetonSep 30, 2024Thank you so much for your detailed review! We’re glad to hear that the sleeping bag has been a reliable companion for your adventures, and we appreciate your feedback on its temperature performance.
To clarify how we rate our sleeping bags, most of our bags are rated for their extreme temperatures. For this particular bag, the extreme rating is 0°F, but the comfort rating is 30°F. As a general rule, we recommend adding around 30 degrees to the extreme rating to find the comfort rating—the temperature at which most people will stay comfortably warm. Of course, this can vary based on your personal preferences and how your body regulates temperature. We suggest starting with the comfort rating and adjusting from there as you get to know how the bag performs for you.
Thank you again for your feedback and for choosing our gear for your adventures!
- WHWilliam H.Verified BuyerRated 5 out of 5 starsFeb 16, 2024Perfect
lightweight, warm, and the material is very nice too, not just the price but also great quality!
- MCMichael C.Verified BuyerRated 5 out of 5 starsDec 5, 2023fits well
This bag fits me well with some wiggle room. I doubt I will be summer backpacking with nights below freezing, but I sleep cold so this will be a luxury. I have Teton Sports backpacks for trips (Explorer 75 and 85, for use with different size tents) and this sleeping bag compresses enough to fit in the bag department in both packs. All features are functional. I keep this laid out flat under my bed, making it always ready for a quick pack into pack and will quickly be ready for use after a day hiking.
- HSHarrison S.Rated 5 out of 5 starsJun 13, 2023Warm and Light!!!
A super lightweight bag that is comfortable and warm! I used it in 20 degree weather with 2 inches of snow on my tent and I was surprised at the warmth. Would recommend, though I would wait for a sale since I bought it for $80!
- HSHarrison S.Verified BuyerRated 5 out of 5 starsNov 19, 2022Best Bag
I had been needing a new sleeping bag for a while and decided to try out the Altos S. It exceeded my expectations, it is super warm and comfortable. I would definitely recommend it for any age or gender.
- MMMatt M.Verified ReviewerRated 5 out of 5 starsJul 18, 2022Solid Bag
I've been using this 4 seasons for the last couple of years. It pairs well with either my milsurp bivvy or hammock. My only complaint is that it isn't available in more natural colors. Keep up the good work, guys.
- S-Steve - Tri State O.Verified BuyerRated 5 out of 5 starsDec 13, 20215 Stars
I was skeptical at first because of the light weight of this bag but I used this bag in 24F degree weather at night in the mountains of PA and I have to say I was pleased with its performance. I was very warm and it was super comfortable. I didn't have to use a second bag or blanket which was nice. It's cold at first because it's not a flannel lining but if you get a micro fleece lining for this bag, it turns into an oven. I don't plant to get out in much colder weather so I think I found a keeper.
Questions & Answers
