---
product_id: 701156848
title: "Cosmic 20 Down Mummy Sleeping Bag for Backpacking, Campers, 550 Fill Power, Recycled Fabrics with PFAS-Free DWR, Designed in Sunny Colorado, USA, 2024 Model"
brand: "kelty"
price: "R11563"
currency: ZAR
in_stock: true
reviews_count: 5
category: "Kelty"
url: https://www.desertcart.co.za/products/701156848-cosmic-20-down-mummy-sleeping-bag-for-backpacking-campers-550
store_origin: ZA
region: South Africa
---

# 550 Fill Power Down Recycled Nylon & Polyester ISO 21°F Limit Rating Cosmic 20 Down Mummy Sleeping Bag for Backpacking, Campers, 550 Fill Power, Recycled Fabrics with PFAS-Free DWR, Designed in Sunny Colorado, USA, 2024 Model

**Brand:** kelty
**Price:** R11563
**Availability:** ✅ In Stock

## Summary

> 🌌 Sleep under the stars, sustainably and snugly.

## Quick Answers

- **What is this?** Cosmic 20 Down Mummy Sleeping Bag for Backpacking, Campers, 550 Fill Power, Recycled Fabrics with PFAS-Free DWR, Designed in Sunny Colorado, USA, 2024 Model by kelty
- **How much does it cost?** R11563 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/701156848-cosmic-20-down-mummy-sleeping-bag-for-backpacking-campers-550)

## Best For

- kelty enthusiasts

## Why This Product

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

## Key Features

- • **Trusted Legacy:** Designed in Colorado since 1952, backed by Kelty’s lifetime warranty.
- • **Sustainably Warm:** 550 fill power ethically sourced down keeps you cozy without compromise.
- • **Tailored Comfort:** Natural-fit footbox and trapezoidal baffles for heat retention and wiggle room.
- • **Eco-Chic Materials:** Recycled shell and liner fabrics with PFAS-free DWR—camp green, sleep clean.
- • **Pack Light, Sleep Tight:** Compressible design fits snugly in your pack at just 2 lbs 6 oz.

## Overview

The Kelty Cosmic 20 Down Sleeping Bag is a 3-season mummy bag featuring 550 fill power ethically sourced down, recycled nylon and polyester shell and liner with PFAS-free durable water repellent, and a temperature rating down to 21°F. Lightweight and highly compressible, it offers a natural-fit footbox and trapezoidal baffle construction for superior warmth and comfort. Designed in Colorado since 1952, this 2024 model blends sustainability with classic Kelty reliability for backpackers and campers who demand eco-conscious performance.

## Description

Remember the trapezoid from high school geometry? Turns out, this funky ol' shape is ideal for helping sleeping bags retain heat. Our trapezoidal baffle construction is just one of the reasons the Cosmic Down is still our favorite three-season superstar. We also love the expanded natural-fit footbox for happier feet, zippered stash pocket and fully recycled fabrics and PFAS-free DWR treatment. The Cosmic Down is the total package.

Review: Warm and packs down well - I bought the Kelty Cosmic Down 20 for fall backpacking trips and so far it has totally exceeded expectations. It kept me warm in temps down to the high 20s °F with just a base layer and a decent sleeping pad. The down insulation lofts up nicely, and I really like the hood and draft collar features—little things that make a big difference on cold nights. It packs down smaller than I expected (fits in my 50L pack with room to spare), and for the price, this is probably one of the best value down bags out there. It's not ultralight, but it's light enough for most weekend or multi-day hikes. Only downside is the mummy shape is a bit snug if you toss and turn. But the footbox has enough space and I still slept comfortably. Highly recommend for 3-season use if you want warmth and quality without breaking the bank.
Review: A Kelty Cosmic 20° Review - Looking for a reliable and comfy sleeping bag that won't break the bank? Look no further than the Kelty Cosmic 20°! This down-filled wonder has been my trusty companion on countless camping trips, and I'm here to tell you why it deserves a spot in your backpack. Warmth you can count on: 550 fill power down: Lofty and toasty, this bag kept me snug as a bug in a rug even on chilly fall nights. Trapezoidal baffles: These clever pockets keep the down evenly distributed, preventing cold spots and maximizing warmth. Comfort that lulls you to sleep: Spacious interior: I never felt constricted, even tossing and turning like a human pretzel. Soft lining: The fabric is gentle against your skin, making it a pleasure to drift off to sleep. Natural-fit footbox: No more cramped toes! This roomy design lets you wiggle your feet freely for ultimate comfort. Lightweight and packable: Compresses down small: Easily stashed in my pack, leaving plenty of room for other gear. Durable ripstop nylon shell: Tough enough to handle the wilderness without weighing you down. A few things to consider: True to its 20° rating: While I was comfy down to the mid-40s, it might not be warm enough for true winter camping. No bells and whistles: This is a basic bag, so if you need features like a draft collar or integrated pillow, you might want to look elsewhere. Overall, the Kelty Cosmic 20° is a fantastic value for the price. It's warm, comfortable, and packs down small, making it a great choice for three-season adventurers. If you're on a budget or just starting out, this bag is a sure winner. Happy camping! I hope this short review helps you decide if the Kelty Cosmic 20° is the right sleeping bag for you. Sweet dreams!

## Features

- A KELTY CLASSIC: The cosmic 20 has long been a staple of Kelty’s backpacking lineup and a favorite of campers worldwide with 550 FP compressible down, silky soft fabrics, dual direction zippers, the cosmic is built for comfort at the campsite
- PFAS FREE AS IT SHOULD BE: None of that toxic stuff here – Recycled nylon and polyester taffeta shell and liner fabrics to keep even more out of the landfill, finished with durable water repellent. Planet Earth approved
- SUSTAINABLE + TRACEABLE DOWN: Did we mention all our down is 100% ethically sourced and traceable via RDS? Info on product tag to trace each specific batch of down, Kelty means business when it comes to sustainability.
- 1952: Since Eisenhower was in the oval, Kelty has been designing camping gear in sunny Colorado. A founding member of The Conservation Alliance, Kelty continues to lead the industry with quality gear for your outdoor shenanigans on or off the trail
- THE DEETS: Each size up represents additional 6” of total length: Short fits sleepers up to 5’ 6”, Regular 6’, Long 6’ 6”. ISO limit rating 21 degrees, ISO extreme rating -11 degrees. Total weight about 2 lbs. 6 oz. (regular) stuffed size 13 x 7”

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CSPKCJZK |
| Additional Features | Highly Compressible and Lightweight, RDS Certified Down, Recycled Shell + Liner Fabrics |
| Age Range Description | Adult |
| Brand | Kelty |
| Brand Name | Kelty |
| Closure Type | Zipper |
| Color | Deep Teal |
| Colour | Deep Teal |
| Customer Reviews | 4.6 out of 5 stars 623 Reviews |
| Fabric Type | Recycled Nylon and Recycled Polyester Taffeta |
| Fill Material Type | Down |
| Included Components | Kelty Cosmic 20 Sleeping Bag, Kelty Limited Lifetime Warranty, Stuff Sack |
| Item Dimensions L x W | 198.1L x 76.2W centimeters |
| Item Type Name | Down Sleeping Bag |
| Item Weight | 1.17 Kilograms |
| Manufacturer | Kelty |
| Manufacturer Part Number | 35413724RR |
| Material | Polyester Nylon |
| Maximum Height Recommendation | 72 Inches |
| Model Number | Kelty |
| Occupancy | 1 Person |
| Seasons | 3 Seasons |
| Shape | Mummy |
| ShellMaterial | Recycled 20D Nylon Taffeta |
| Size | Regular |
| Sport Type | Camping & Hiking, Backpacking |
| Temperature Rating | 20 Degrees |
| Temperature rating | 20 Degrees |
| UPC | 727880887513 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Kelty
- **Colour:** Deep Teal
- **Occupancy:** 1 Person
- **Shape:** Mummy
- **Seasons:** 3 Seasons

## Images

![Cosmic 20 Down Mummy Sleeping Bag for Backpacking, Campers, 550 Fill Power, Recycled Fabrics with PFAS-Free DWR, Designed in Sunny Colorado, USA, 2024 Model - Image 1](https://m.media-amazon.com/images/I/51tiHd10hnL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Warm and packs down well
*by J***P on 21 October 2025*

I bought the Kelty Cosmic Down 20 for fall backpacking trips and so far it has totally exceeded expectations. It kept me warm in temps down to the high 20s °F with just a base layer and a decent sleeping pad. The down insulation lofts up nicely, and I really like the hood and draft collar features—little things that make a big difference on cold nights. It packs down smaller than I expected (fits in my 50L pack with room to spare), and for the price, this is probably one of the best value down bags out there. It's not ultralight, but it's light enough for most weekend or multi-day hikes. Only downside is the mummy shape is a bit snug if you toss and turn. But the footbox has enough space and I still slept comfortably. Highly recommend for 3-season use if you want warmth and quality without breaking the bank.

### ⭐⭐⭐⭐⭐ A Kelty Cosmic 20° Review
*by A***R on 20 December 2023*

Looking for a reliable and comfy sleeping bag that won't break the bank? Look no further than the Kelty Cosmic 20°! This down-filled wonder has been my trusty companion on countless camping trips, and I'm here to tell you why it deserves a spot in your backpack. Warmth you can count on: 550 fill power down: Lofty and toasty, this bag kept me snug as a bug in a rug even on chilly fall nights. Trapezoidal baffles: These clever pockets keep the down evenly distributed, preventing cold spots and maximizing warmth. Comfort that lulls you to sleep: Spacious interior: I never felt constricted, even tossing and turning like a human pretzel. Soft lining: The fabric is gentle against your skin, making it a pleasure to drift off to sleep. Natural-fit footbox: No more cramped toes! This roomy design lets you wiggle your feet freely for ultimate comfort. Lightweight and packable: Compresses down small: Easily stashed in my pack, leaving plenty of room for other gear. Durable ripstop nylon shell: Tough enough to handle the wilderness without weighing you down. A few things to consider: True to its 20° rating: While I was comfy down to the mid-40s, it might not be warm enough for true winter camping. No bells and whistles: This is a basic bag, so if you need features like a draft collar or integrated pillow, you might want to look elsewhere. Overall, the Kelty Cosmic 20° is a fantastic value for the price. It's warm, comfortable, and packs down small, making it a great choice for three-season adventurers. If you're on a budget or just starting out, this bag is a sure winner. Happy camping! I hope this short review helps you decide if the Kelty Cosmic 20° is the right sleeping bag for you. Sweet dreams!

### ⭐⭐⭐⭐⭐ Great Sleeping Bag For Price
*by M***G on 30 April 2026*

I've used this down to 20 degrees and I was warm (with some extra layers on, and a warm sleeping pad). Kept me very warm and anything above around 35 maybe 30 degrees i sleep with no layers, packs small and not super expensive. Great buy!

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-07-10*