--- product_id: 620456365 title: "Cosmic 20 Down Mummy Sleeping Bag for Backpacking, Campers, 550 Fill Power, Recycled Fabrics with PFAS-Free DWR, Designed in Sunny Colorado," brand: "kelty" price: "€ 338.71" currency: EUR in_stock: true category: "Kelty" url: https://www.desertcart.gr/products/620456365-cosmic-20-down-mummy-sleeping-bag-for-backpacking-campers-550 store_origin: GR region: Greece --- # 550 Fill Power Down Recycled Nylon & Polyester PFAS-Free Durable Water Repellent Cosmic 20 Down Mummy Sleeping Bag for Backpacking, Campers, 550 Fill Power, Recycled Fabrics with PFAS-Free DWR, Designed in Sunny Colorado, **Brand:** kelty **Price:** € 338.71 **Availability:** βœ… 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, by kelty - **How much does it cost?** € 338.71 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/620456365-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 - β€’ **Smart Ventilation:** Dual-direction zippers let you regulate temperature without fully unzipping. - β€’ **Comfort Meets Function:** Natural-fit footbox and internal stash pocket keep your feet relaxed and essentials close. - β€’ **Pack Light, Sleep Tight:** Compressible down and lightweight design (2 lbs 6 oz) for effortless backpacking. - β€’ **Season-Extending Warmth:** ISO 20Β°F rating keeps you cozy from spring chills to fall nights. - β€’ **Eco-Conscious Craftsmanship:** Made with 100% ethically sourced down and recycled fabricsβ€”camp guilt-free. ## Overview The Kelty Cosmic 20 Down Mummy Sleeping Bag is a three-season, lightweight backpacking essential featuring 550 fill power ethically sourced down, recycled nylon and polyester shell with PFAS-free water repellent finish. Designed in Colorado, it offers ISO 20Β°F comfort rating, dual zippers for ventilation, and a natural-fit footbox, all packed into a highly compressible 2 lb 6 oz package that extends your camping season while minimizing environmental impact. ## Description The camping season is longer than most people give it credit for, and the Kelty Cosmic 20 Sleeping Bag is built around that idea. Rated to 20Β°F with an ISO comfort rating of 32Β°F, this is a three-season bag that handles the cold end of spring and the hard end of fall without asking you to reconsider your plans. The 550-fill duck down lofts quickly, compresses into the included stuff sack without a fight, and stays light enough in the pack that you don't feel it on the way in. Trapezoidal baffle construction keeps the down distributed and working rather than shifting to the edges where it stops insulating. A draft tube backs up the half-length zipper against cold air infiltration, and the natural-fit footbox gives your feet enough room to relax rather than stay pointed all night. The internal stash pocket keeps a phone or headlamp close and warm enough to hold battery through a cold night. Dual sliding zippers open from either end to vent heat when the temperature swings without committing to a full unzip. This is a bag that extends your season without complicating your kit. ## Features - Recycled Nylon and Recycled Polyester Taffeta - Imported - 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 | B0CSPJR61T | | Additional Features | Highly Compressible and Lightweight, RDS Certified Down, Recycled Shell + Liner Fabrics | | Age Range Description | Adult | | Best Sellers Rank | #11,268 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #37 in Camping Sleeping Bags | | Brand Name | Kelty | | Closure Type | Zipper | | Color | Dark Blue | | Customer Reviews | 4.7 4.7 out of 5 stars (262) | | 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 | 84"L x 30"W | | Item Type Name | Down Sleeping Bag | | Item Weight | 1.27 Kilograms | | Manufacturer | Kelty | | Manufacturer Part Number | 35413724LR | | Material | PFC-free DWR, [lining] 50D polyester, [shell] 20D nylon | | Maximum Height Recommendation | 7 Feet | | Model Number | Kelty | | Occupancy | 1 Person | | Seasons | 3 Seasons | | Shape | Mummy | | ShellMaterial | Recycled 20D Nylon Taffeta | | Size | Long | | Sport Type | Camping & Hiking, Backpacking | | Temperature Rating | 20 Degrees | | UPC | 727880887520 | | Unit Count | 1.0 Count | | Warranty Description | Kelty Limited Lifetime Waranty | ## Product Details - **Age Range (Description):** Adult - **Brand:** Kelty - **Color:** Dark Blue - **Material:** PFC-free DWR, [lining] 50D polyester, [shell] 20D nylon - **Occupancy:** 1 Person - **Seasons:** 3 Seasons - **Shape:** Mummy - **Special Feature:** Highly Compressible and Lightweight, RDS Certified Down, Recycled Shell + Liner Fabrics - **Sport:** Camping & Hiking, Backpacking - **Temperature Rating:** 20 Degrees ## Images ![Cosmic 20 Down Mummy Sleeping Bag for Backpacking, Campers, 550 Fill Power, Recycled Fabrics with PFAS-Free DWR, Designed in Sunny Colorado, - Image 1](https://m.media-amazon.com/images/I/51tiHd10hnL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Frequently Bought Together - Kelty 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 - Sawyer Products SP129 Squeeze Water Filtration System w/ Two 32-Oz Squeeze Pouches, Straw, and Hydration Pack Adapter - TOAKS Titanium 750ml Pot --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.gr/products/620456365-cosmic-20-down-mummy-sleeping-bag-for-backpacking-campers-550](https://www.desertcart.gr/products/620456365-cosmic-20-down-mummy-sleeping-bag-for-backpacking-campers-550) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-07-06*