---
product_id: 618000782
title: "Kelty Cosmic 20 Degree Down Sleeping Bag - Long - Ultralight Backpacking Camping Sleeping Bag with Stuff Sack"
brand: "kelty"
price: "HK$243"
currency: HKD
in_stock: false
reviews_count: 13
url: https://www.desertcart.hk/products/618000782-kelty-cosmic-20-degree-down-sleeping-bag-long-ultralight-backpacking
store_origin: HK
region: Hong Kong
---

# Ultralight 1.27 kg weight 600 fill Dridown insulation Water-resistant outer shell Kelty Cosmic 20 Degree Down Sleeping Bag - Long - Ultralight Backpacking Camping Sleeping Bag with Stuff Sack

**Brand:** kelty
**Price:** HK$243
**Availability:** ❌ Out of Stock

## Summary

> 🔥 Stay warm, pack light, and own the trail! 🎒

## Quick Answers

- **What is this?** Kelty Cosmic 20 Degree Down Sleeping Bag - Long - Ultralight Backpacking Camping Sleeping Bag with Stuff Sack by kelty
- **How much does it cost?** HK$243 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/618000782-kelty-cosmic-20-degree-down-sleeping-bag-long-ultralight-backpacking)

## 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

- • **Light as Air:** Ultralight design keeps your pack lean without sacrificing warmth
- • **Smart Storage:** Built-in pocket keeps your essentials close and safe
- • **Weather-Ready:** Water-resistant down and insulated draft tube block cold and moisture
- • **Tailored Thermal Fit:** Women's-specific cut for max heat retention where it counts
- • **Comfort Meets Performance:** Soft polyester liner and shaped footbox for cozy nights outdoors

## Overview

The Kelty Cosmic 20 Degree Down Sleeping Bag is a women's-specific, ultralight mummy bag designed for 3-season backpacking. Featuring 600 fill Dridown insulation with water-resistant treatment, it offers superior warmth-to-weight ratio and thermal efficiency through a contoured fit, insulated draft tube, and hood. Weighing just 1.27 kg and including a handy stuff sack and electronics pocket, it’s engineered for comfort and convenience on every adventure.

## Description



## Features

- The Kelty Women's Cosmic 20 Degree sleeping bag is ideal for 3 season backpacking and camping. Water resistant down insulation and an array of features make this sleeping bag a great combination of value and comfort.
- Kelty's women's sleeping bag models are cut to more closely follow the contours of a woman's body, maximizing thermal efficiency.
- Compared to the men's versions, these bags are narrower at the shoulders, roomier at the hips and have extra insulation in the mid section and foot of the bag, which are prime areas for heat loss.
- This sleeping bag is insulated with 600 fill Dridown. Renowned for efficiency in retaining heat and compressible properties, down has an incredibly soft, comfortable feel, and provides the best warmth to weight ratio of any insulation available.
- A draft tube behind the 60" two way locking anti snag zipper and an insulated hood further enhance the thermal efficiency of the Cosmic 20 Degree bag..A polyester taffeta liner provides internal comfort. Other features include a small pocket to keep electronics handy and a naturally shaped footbox..The Kelty Women's Cosmic 20 Degree sleeping bag fits up to 5' 8". Each sleeping bag includes a stuff sack..Care instructions: Hand Wash

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Age range | Adult |
| Color | Vapor |
| Size | Women's Regular |
| Style | Women's |
| Insulation material | Down |
| Item display length | 18 inches |
| Weight | 1.27 kg |
| Shape | Mummy |
| Material type | Nylon |
| Number of items | 1 |
| Outer material | Polyester |
| Seasons | All Seasons |
| Sport | Backpacking, Camping and Hiking |
| Included components | Sleeping Bag, Stuff Sack |
| Batteries included? | No |
| Brand | Kelty |
| Fill material | Down |
| Department | Women's |
| Manufacturer | Kelty |
| Item model number | 35413819RR |
| Product Dimensions | 30.48 x 15.24 x 15.24 cm; 1.27 kg |
| ASIN | B07M9G62YN |

## Product Details

- **Brand:** Kelty
- **Colour:** Vapor
- **Occupancy:** 1 Person
- **Shape:** Mummy
- **Seasons:** All Seasons
- **Temperature rating:** 20
- **Age range (description):** Adult
- **Sport:** Backpacking, Camping and Hiking
- **Material:** Nylon
- **Fill material:** Down

## Images

![Kelty Cosmic 20 Degree Down Sleeping Bag - Long - Ultralight Backpacking Camping Sleeping Bag with Stuff Sack - Image 1](https://m.media-amazon.com/images/I/51xavyxHK5L.jpg)
![Kelty Cosmic 20 Degree Down Sleeping Bag - Long - Ultralight Backpacking Camping Sleeping Bag with Stuff Sack - Image 2](https://m.media-amazon.com/images/I/51xop4PaaBL.jpg)
![Kelty Cosmic 20 Degree Down Sleeping Bag - Long - Ultralight Backpacking Camping Sleeping Bag with Stuff Sack - Image 3](https://m.media-amazon.com/images/I/513KRtcIhHL.jpg)
![Kelty Cosmic 20 Degree Down Sleeping Bag - Long - Ultralight Backpacking Camping Sleeping Bag with Stuff Sack - Image 4](https://m.media-amazon.com/images/I/51U2SVKecgL.jpg)
![Kelty Cosmic 20 Degree Down Sleeping Bag - Long - Ultralight Backpacking Camping Sleeping Bag with Stuff Sack - Image 5](https://m.media-amazon.com/images/I/91kbT53zUkL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Very comfy and warm. Great buy!
  

*by J***T on Reviewed in the United Kingdom on 7 June 2022*

I'm very happy with this purchase. It was a bit more than I was wanting to pay for a sleeping bag, but I really wanted a down bag and this is pretty much the cheapest one going. I slept in this on a Big Agnes Air Air Core Ultra 4.5r mat, so I already had some good insulation under me for a May weather, but I was very toasty. It wasn't too toasty though, which is important to know. I slept solid for two nights, one of which was fairly cool as the rain had swept in. The hood and collar provide great warmth for the top half, the thick and soft down throughout keeps you comfortable and warm, and the foot box prevents you from feeling restrained at the feet. I'm 5"11 and there was still an inch or two of room at the bottom. The pocket just fits my Galaxy S10 with some wiggling. Smooth zips and a decent pack size meant I had a great trip without worrying about my sleep system at all. Highly recommend!

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Great sleeping bag
  

*by S***S on Reviewed in the United Kingdom on 29 August 2022*

Been using it for well over a year and find it warm and comfortable.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Great for the money
  

*by P***L on Reviewed in the United Kingdom on 8 June 2022*

This is a steal at this price. Its warm has a decent loft and the build quality is excellent

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**Shop now:** [https://www.desertcart.hk/products/618000782-kelty-cosmic-20-degree-down-sleeping-bag-long-ultralight-backpacking](https://www.desertcart.hk/products/618000782-kelty-cosmic-20-degree-down-sleeping-bag-long-ultralight-backpacking)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-03-07*