KELTY

Kelty Cosmic Synthetic 40°F – Lightweight Summer Sleeping Bag Synthetic (Unisex)

SKU: KY-2190 Category: Blankets & Sleeping Bags

Colour: Duffel Bag/Smoke

Duffel Bag / Sea Spray / Cathay Spice
Size: Regular Unfortunately, your selection is not available.

Long

On stock in variations

RRP: ~~140,00 €~~

98,00 €

incl. 19% VAT , Free shipping

Old price: 140,00 €

This item has variations. Please select the requested variation.

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Lightweight summer sleeping bag with CirroLoft ECO – ISO Comfort 41°F

For warm-weather nights in the van, at camp, or on a hut trip, the Cosmic Synthetic 40°F gives you what you actually need: soft, compressible warmth, recycled materials, and ISO-tested comfort without bulk. It’s light, packable, and ready for summer.

✅ ISO rated: Comfort 41°F · Limit 32°F – perfect for summer & mild shoulder season trips
✅ CirroLoft ECO insulation – fine-denier, 100% recycled, packs down small
✅ Shell: recycled 20D nylon · Liner: 50D polyester · PFAS-free
✅ Right-side zipper with full draft tube & anti-snag protection
✅ Natural-fit footbox – more space to move and breathe
✅ Includes compression sack – packed size ~17" × 8", weight ~2.3–2.5 lb
✅ Available in two sizes:
Regular: up to 6 ft / 183 cm
Long: up to 6'6" / 198 cm

Icon - Schlafsack aus recycletem Material Icon - Schlafsack mit Kunstfaserfüllung aus recycelten Material

Kelty Cosmic Synthetic 40°F – Lightweight Summer Sleeping Bag Synthetic (Unisex)

Description

Productinformation in detail

Key Features

Materials & Care

Size Guide

Reviews

Description

Productinformation in detail

Key Features

Materials & Care

Size Guide

Reviews

Lightweight summer sleeping bag with CirroLoft ECO – ISO Comfort 41°F

✅ ISO rated: Comfort 41°F · Limit 32°F – perfect for summer & mild shoulder season trips
✅ CirroLoft ECO insulation – fine-denier, 100% recycled, packs down small
✅ Shell: recycled 20D nylon · Liner: 50D polyester · PFAS-free
✅ Right-side zipper with full draft tube & anti-snag protection
✅ Natural-fit footbox – more space to move and breathe
✅ Includes compression sack – packed size ~17" × 8", weight ~2.3–2.5 lb
✅ Available in two sizes:
Regular: up to 6 ft / 183 cm
Long: up to 6'6" / 198 cm

Icon - Schlafsack aus recycletem Material Icon - Schlafsack mit Kunstfaserfüllung aus recycelten Material

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Summer-ready comfort with recycled insulation and soft, packable materials

Not every trip calls for cold-weather gear. Sometimes, you just need a sleeping bag that’s light, compact, and cozy enough to handle warm nights under the stars. The Kelty Cosmic Synthetic 40°F was built for exactly that: comfort, compressibility, and thoughtful design—all backed by ISO testing and recycled materials.

—

Just enough warmth, exactly when you need it

With an ISO comfort rating of 41°F (5 °C), this bag is made for hut-to-hut hikes, summer camping, and late spring road trips. The CirroLoft™ ECO fill—made from 100% recycled fibers—offers even insulation that holds up in damp conditions, while offset quilting helps eliminate cold spots before they start.

—

Practical features, right where they matter

A full-length right-side zipper with dual sliders makes venting simple and snag-free. The contoured hood and natural-fit footbox give you room to move, while still preserving thermal efficiency. Inside, a small zippered stash pocket gives you quick access to a headlamp, phone, or sleep essentials. It’s light, soft, and ready to go when you are.

—

Our take – Cosmic 40°F at Campanions

For vanlife, warm-weather trekking, and anyone who’d rather carry snacks than extra fill, this is a go-to summer bag. Compact, affordable, and full of practical details, it’s a real 3-season solution for trips that stay above freezing.

Item information	Value
Color:	green
Shipping weight:	1,41 kg
Item weight:	1,41 kg

Icon	Meaning	Description
	Natural-fit Footbox	✅ More room to wiggle your toes – for better sleep and fewer cold spots. Ideal for back and side sleepers.
	Offset-Quilt-Construction	✅ Offset quilt pattern prevents cold spots and keeps warmth evenly distributed through the night.
	Inside Stash Pocket	✅ Internal zip pocket keeps headlamp, phone or small essentials right where you need them.

✅ ISO comfort tested at 41°F (limit 32°F)
Perfect for summer camping, van trips, or cabin overnights—light and reliable.

✅ CirroLoft™ ECO fill made from 100% recycled fibers
Soft, breathable, and thermally consistent—even when humidity rises.

✅ Recycled shell and liner fabrics with PFAS-free DWR
Buttery-soft 20D nylon exterior, smooth 50D polyester liner inside.

✅ Right-side zipper with dual sliders and full-length draft tube
Easy to vent or seal in warmth—anti-snag design for hassle-free use.

✅ Internal stash pocket + natural-fit footbox
Room for essentials and space for your toes—ideal for side sleepers.

✅ Available in Regular (6 ft) & Long (6'6")
Packs down to 17" × 8" · weighs just 2.3–2.5 lb.

Area	Details
Shell Fabric	Recycled 20D nylon taffeta with PFAS-free DWR
Liner Fabric	Recycled 50D polyester taffeta – soft & quick-drying
Insulation	CirroLoft™ ECO – 100% recycled synthetic fill
Fill Weight	21.1 oz (~598 g)
Total Weight	2.47–2.54 lb (approx. 1.12–1.15 kg)
Packed Size	Approx. 17" × 8" (43 × 20 cm)
Construction	Offset quilting, natural footbox, contoured hood
Zipper	Right side · Dual sliders · Anti-snag · Full-length draft collar
Extras	Internal stash pocket · Compression stuff sack included

Care Instructions

Machine wash cold on gentle cycle
Use technical detergent only – no fabric softener
Do not spin or wring
Air dry flat – do not tumble dry
Store loosely – avoid long-term compression
Do not bleach or dry clean

Fit & Sizing – Kelty Cosmic Synthetic 40°F (Unisex)

Size Variant	Max. Height	Bag Length	Weight	Packed Size
Regular	up to 6 ft / 183 cm	~78–79 in	~2.47 lb	17 × 8 in
Long	up to 6'6" / 198 cm	~84–85 in	~2.54 lb	17 × 8 in

💬 Campanions Tip:

Regular is best for users up to 6 ft (183 cm) who want thermal efficiency and minimal dead air.
Long is ideal for taller sleepers or anyone who needs extra room for movement or layers.

Not sure?
If you’re close to the size limit and sleep cold, choose Regular.
If you sleep with gear, move a lot, or prefer a looser fit, go for Long.

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