---
product_id: 63510312
title: "Altos 20F Synthetic"
brand: "teton sports"
price: "VT46249"
currency: VUV
in_stock: null
reviews_count: 10
category: "Teton Sports"
url: https://www.desertcart.vu/products/63510312-altos-20f-synthetic
store_origin: VU
region: Vanuatu
---

# 2.8 lbs ultralight carry Highly compressible pack size 20°F warmth rating Altos 20F Synthetic

**Brand:** teton sports
**Price:** VT46249
**Availability:** ❌ Out of Stock

## Summary

> 🔥 Sleep Light, Adventure Heavy – The Altos Has Your Back!

## Quick Answers

- **What is this?** Altos 20F Synthetic by teton sports
- **How much does it cost?** VT46249 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/63510312-altos-20f-synthetic)

## Best For

- teton sports enthusiasts

## Why This Product

- Trusted teton sports brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Pack & Go:** Compressible design fits easily into your backpack for hassle-free adventures
- • **Room to Roam:** Generous shoulder & leg space with vaulted footbox for all-night comfort
- • **Trusted Support:** Backed by TETON Sports’ lifetime warranty and dedicated customer care
- • **All-Season Ready:** Reliable 20°F rating keeps you warm from backyard camping to backcountry treks
- • **Warmth Without Weight:** Lofty Dupont Sonora fill delivers cozy warmth at just 2.8 lbs

## Overview

The TETON Sports Altos Sleeping Bag is a lightweight, compressible mummy bag designed for adults up to 6 feet tall. Featuring a 20°F temperature rating and Dupont Sonora synthetic fill, it balances warmth and packability for versatile all-season use. Its roomy design with a vaulted footbox enhances comfort, while durable polyester ripstop fabric ensures lasting performance. Perfect for backpackers and campers seeking dependable warmth without bulk, it comes with a lifetime warranty and responsive customer support.

## Description

Step up your comfort. The ALTOS Ultralight Sleeping Bags are designed with you in mind. The fill keeps you warm and comfortable. These bags provide more room for your shoulders, legs and feet. Step up your features. The ALTOS 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 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 fill, vaulted footbox, zipper draft tubes and a 3-piece hood. Get the ALTOS Ultralight Sleeping Bag and step up your adventure.

Review: Accurate temperature rating. - So this product performed better than I expected. I decided to test it out on my back porch last night since I received it yesterday, and I knew that the temperature was going to be a low of 28°, so I expected this 20° bag to keep me fairly warm, but most people agree that the temperature rating on the bags is a survival rating and that you shouldn't expect to be comfortable at the actual survival rating and that you should probably buy a bag that is 10° warmer than your intended temperature if you want to be comfortable. However, this bag, paired with a 4.4R value pad, kept me very warm and comfortable at 28° without a tent or tarp, without wind, on my back porch. The sleeping bag itself is about 2 and 1/2 lb and the material seems thin , but it works and Is much more compressible than my 0° bag. You can get a thinner, lighter, more compressible down bag if you're willing to drop significantly more money on it, but for the price, this is an extremely good value and a good bag.
Review: Good Warmth/Weight ratio - I went with the Altos 20-deg bag (blue) as an upgrade to an old-but-warm bag that is just too bulky for back country hiking. Took this out for a weekend campout and pleased with the quality. The Altos straight out of the bag for first use needed a few hours to expand the filler enough to provide decent insulation and by the following day of being left open it appeared to be fully expanded and quite fluffy. Both nights the temps were in the 30's and I was plenty comfortable with boxers, a t-shirt and socks as my personal layer. The footbox is a little tighter than I'm accustomed to but I did not feel constricted in any way and retained enough space where I could just barely slide my leg up in order to adjust my socks without having to unzip the bag (I'm 5'10", 170lb). The draft blocking flap around the inside seemed a little low but still effective (I didn't bother cinching it) and the cap/top of the bag has a nice bit of padding and insulation that was very comfortable and allowed me to sleep without a beanie cap, which was a really nice change from my usual cold-weather camping. This bag is rated as a 20-deg bag and I'm not confident it would keep me warm enough at that temp without wearing thermals and definitely heavy socks. I noticed that wherever my shoulder or knee happened to press against the fabric, I felt a cold spot. Not enough to get a chill, but noticeably colder. The footbox was warm enough and was better the second night after the fill thoroughly expanded. Overall I'm happy with this bag.

## Features

- STEP UP YOUR COMFORT: This roomy bag provides more shoulder and leg room; Built-out footbox provides more room for your feet; Breathable and warm
- STEP UP YOUR WARMTH: Lofty, lightweight, and highly compressible; Enjoy the unrivaled warmth of this water-resistant sleeping bag that you can take anywhere
- STEP UP YOUR ADVENTURE: You can take this mummy sleeping bag anywhere; From backyard to backcountry, this is the bag you need to have a worry-free adventure
- TETON SPORTS PROMISE: Reach out to our AMAZING product support team if you have any questions or concerns; YOU CAN COUNT ON US to get you taken care of and back OUTDOORS with TETON Sports

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B075JD3H7J |
| Age Range (Description) | Adult |
| Best Sellers Rank | #44,245 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #99 in Camping Sleeping Bags |
| Brand | TETON Sports |
| Brand Name | TETON Sports |
| Closure Type | Zipper |
| Color | Burnt Orange |
| Customer Reviews | 4.4 4.4 out of 5 stars (796) |
| Date First Available | October 13, 2017 |
| Fill Material | Dupont Sonora |
| Fill Material Type | Dupont Sonora |
| Global Trade Identification Number | 00817354011688 |
| Included Components | compression sack, sleeping bag |
| Item Dimensions LxWxH | 84 x 32 x 3 inches |
| Item Package Dimensions L x W x H | 12.9 x 8.9 x 8.7 inches |
| Item Weight | 2.8 Pounds |
| Manufacturer | TETON Sports |
| Material | Polyester Ripstop |
| Maximum Height Recommendation | 6 Feet |
| Model Name | TETON Sports Altos-S +20ºF Ultralight Mummy |
| Number of Items | 2 |
| Occupancy | 1 Person |
| Outer Material | Polyester |
| Package Weight | 1.59 Kilograms |
| Part Number | 1168 |
| Product Dimensions | 84"L x 32"W |
| Seasons | All Seasons |
| Shape | Mummy |
| Size | 84" x 32" x 17" |
| Special Feature | Compressible |
| Sport | Backpacking |
| Style | Synthetic, 20f |
| Suggested Users | unisex-adult |
| Temperature Rating | +20˚F |
| Thermal Resistance | 0.5 Watts per Meter per Degree Celsius |
| UPC | 817354011688 |
| Warranty Description | TETON Sports® Lifetime Warranty : TETON Sports® strives to manufacture the best possible products for our customers. Our limited lifetime warranty covers products against defects in materials or workmanship. This warranty is cheerfully extended to the original owner only and excludes normal wear and tear (e.g., zippers that wear out after extended use) or misuse. Please follow care instructions. I… |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** TETON Sports
- **Color:** Burnt Orange
- **Material:** Polyester Ripstop
- **Occupancy:** 1 Person
- **Seasons:** All Seasons
- **Shape:** Mummy
- **Special Feature:** Compressible
- **Sport:** Backpacking
- **Temperature Rating:** +20˚F

## Images

![Altos 20F Synthetic - Image 1](https://m.media-amazon.com/images/I/51NnELt+fCL.jpg)
![Altos 20F Synthetic - Image 2](https://m.media-amazon.com/images/I/61yNB6QVonL.jpg)
![Altos 20F Synthetic - Image 3](https://m.media-amazon.com/images/I/71nwJH7snnL.jpg)
![Altos 20F Synthetic - Image 4](https://m.media-amazon.com/images/I/8154JvONgwL.jpg)
![Altos 20F Synthetic - Image 5](https://m.media-amazon.com/images/I/81CBAzYrIOL.jpg)

## Available Options

This product comes in different **Pattern, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Accurate temperature rating.
*by A***Y on March 24, 2024*

So this product performed better than I expected. I decided to test it out on my back porch last night since I received it yesterday, and I knew that the temperature was going to be a low of 28°, so I expected this 20° bag to keep me fairly warm, but most people agree that the temperature rating on the bags is a survival rating and that you shouldn't expect to be comfortable at the actual survival rating and that you should probably buy a bag that is 10° warmer than your intended temperature if you want to be comfortable. However, this bag, paired with a 4.4R value pad, kept me very warm and comfortable at 28° without a tent or tarp, without wind, on my back porch. The sleeping bag itself is about 2 and 1/2 lb and the material seems thin , but it works and Is much more compressible than my 0° bag. You can get a thinner, lighter, more compressible down bag if you're willing to drop significantly more money on it, but for the price, this is an extremely good value and a good bag.

### ⭐⭐⭐⭐⭐ Good Warmth/Weight ratio
*by A***R on November 27, 2020*

I went with the Altos 20-deg bag (blue) as an upgrade to an old-but-warm bag that is just too bulky for back country hiking. Took this out for a weekend campout and pleased with the quality. The Altos straight out of the bag for first use needed a few hours to expand the filler enough to provide decent insulation and by the following day of being left open it appeared to be fully expanded and quite fluffy. Both nights the temps were in the 30's and I was plenty comfortable with boxers, a t-shirt and socks as my personal layer. The footbox is a little tighter than I'm accustomed to but I did not feel constricted in any way and retained enough space where I could just barely slide my leg up in order to adjust my socks without having to unzip the bag (I'm 5'10", 170lb). The draft blocking flap around the inside seemed a little low but still effective (I didn't bother cinching it) and the cap/top of the bag has a nice bit of padding and insulation that was very comfortable and allowed me to sleep without a beanie cap, which was a really nice change from my usual cold-weather camping. This bag is rated as a 20-deg bag and I'm not confident it would keep me warm enough at that temp without wearing thermals and definitely heavy socks. I noticed that wherever my shoulder or knee happened to press against the fabric, I felt a cold spot. Not enough to get a chill, but noticeably colder. The footbox was warm enough and was better the second night after the fill thoroughly expanded. Overall I'm happy with this bag.

### ⭐⭐⭐⭐ Decent Bag, Cold Rating Beware.
*by A***R on May 23, 2025*

This sleeping bag is comfortable enough but does not provide the amount of warmth I was hoping for. I'll start with the negative being that warmth seeps out of this bag. Despite my best attempts at closing in the opening, without anything else to slow the temperature drop, it's going to get uncomfortable. If you move in your sleep, you'll get colder quicker. The good news is it'll keep you alive until the sun, movement, and coffee in the morning can reheat you. It is imperative that you put boiling water in a Nalgene bottle to stuff in this bag for overnight so you can get a decent night's rest. I've also had to put on toe warmers in my camp booties to keep my feet from being the reason I wake up in the night. The positive is that this is a great price for the weather rating. I look forward to using it for weather over 32F as we transition into the late spring/summer months. It has great compression and is perfectly lightweight. I stuff it in my backpack without the stuff sack as the buckles are too bulky and with a few good shoves from the top, I manage to fit a plethora of other kit in my pack. It will remain a staple in my backpack for the fall and spring seasons.

## Frequently Bought Together

- TETON Sports ALTOS, 20 Degree and 0 Degree Sleeping Bag for Adults, Lightweight Warm Mummy Sleeping Bag for Camping, Hiking, Backpacking
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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-02-11*