---
title: "Cumulus Lite Line 300"
name: "Cumulus Lite Line 300"
brand: "Cumulus"
description: "It’s a reliable three-season option for the hardy hikers; for the cold-sensitive hikers, it’s a summer ultralight option."
handle: "cumulus-lite-line-300"
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currency: "EUR"
price: 350.3
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category: "Sleeping bags"
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  - name: "Cumulus Lite Line 300"
    url: "/p/cumulus-lite-line-300"
last_updated: "2026-10-13"
---

# Cumulus Lite Line 300

Brand: Cumulus · Category: [Sleeping bags](/c/sleep/sleeping-bags.md)
Sleeping bag size: M, L, S · Zip position: Left side, Right side · Zipper position: Left, Right

## Offer

- Price: €350.30
- Availability: In stock
- Condition: New
- Buy on the website: [HTML product page](/p/cumulus-lite-line-300)

## Description

It’s a reliable three-season option for the hardy hikers; for the cold-sensitive hikers, it’s a summer ultralight option. The Lite Line 300 stands out with its low weight, excellent packability, and good performance. It's the perfect choice for cycling or hiking trips. Thanks to its smart design, high-quality down, and a range of thoughtful features, it is one of the best-selling models from the Cumulus brand.

## Features you will appreciate.

Well-designed three-season down sleeping bag with low weight and excellent performance.

## Materials

The construction of the sleeping bag uses **Pertex Quantum fabric 29 g/m²**, which perfectly combines low weight, durability, breathability, and packability. The outer fabric is treated with a **durable water-repellant (DWR) coating** that retains light condensation or a few drops of water.

The excellent performance is provided by **300 grams of goose down with a fill power of 850 cuin**. The down to small feathers ratio is 95/5. The upper chambers are separated from the lower ones and are filled with a slightly larger amount of down. The down is distributed here in a ratio of 55/45.

## Construction

The sleeping bag uses **trapezoidal chamber****s** that prevent the formation of "cold spots" at the seam of two chambers. 

The width of the sleeping bag at the shoulders is 77 cm and 51 cm at the hips. Based on our experience, the basic size M is suitable for individuals with a maximum height of 183 cm. 

The foot box construction named **Shark-fin** prevents down compression, is comfortable, and provides better thermal performance than standard constructions.

## Features

For easy orientation, the tightening of the hood and collar is differentiated; the hood is tightened with a flat strap and the collar with an elastic band. The last chamber at the neck is filled with a larger amount of down, creating a **comfortable collar that prevents heat loss**. Inside the sleeping bag, there is a **mesh pocket** for a mobile phone, earplugs, or other small items.

The sleeping bag features a 175 cm long YKK zipper with an extended slider to prevent it from snagging on the fabric during zipping. At the foot area, you'll find a second slider, which is ideal for ventilation. Behind the zipper on the inner side, there is a **down-filled insulating tube** that minimizes heat loss through the zipper itself. Two Cumulus sleeping bags with **opposite zippers (left + right) can be connected together**.

## Sleeping bag accessories

**A simple travel storage sack is included with the sleeping bag.** The sleeping bag has a cylindrical shape with a volume of 4,4 liters and dimensions of 22/16 cm (height/diameter).

The original sack cannot be further compressed and is not waterproof, so we recommend getting a sack that that solves both problems. The ideal choice is [STS compression sack eVENT Ultra-Sil](/p/sea-to-summit-evac-compression-dry-bag-ul) of size S or a classic waterproof bag [Sea To Summit Ultra-Sil Dry Sack](/p/sea-to-summit-ultra-sil-dry-bag) about size 8 l.

**You also get a large storage bag for home use** with the sleeping bag, so the sleeping bag isn't unnecessarily compressed for a long time.

[Video](https://youtu.be/oebf7sa608Q)

## Specs

- Color: Desert Dusk
- Sleeping bag size: M, L, S
- Zip position: Left side, Right side
- Zipper position: Left, Right
- Chamber design: Trapezoid chambers
- Down-to-feather ratio: 95/5 (feather/down)
- Filling chambers: 55:45
- Total number of chambers: 32
- Extreme temperature: -15 °C
- Season: 3-season
- Comfort temperature: 4 °C
- Limit temperature: 0 °C
- Down weight: 300 g
- Fill power: 850 cuin
- Down type: Goose
- Hydrophobic down: No
- Insulation type: Down
- Material: YKK 5 mm zip, Pertex Quantum DWR (29 g/m², 15D ripstop nylon)
- Packed dimensions: 22 × 16 cm
- Stuff sack volume: 4 l
- Hip width: 51 cm
- Shoulder width: 77 cm
- Weight: 600 g
- Woocommerce product id: 602
- Brand: Cumulus

## Variants

- Cumulus Lite Line 300 - Prodlouzena-large, Leva-strana · SKU CULILI300-LL · €401 · In stock · L, Left side, Desert Dusk
- Cumulus Lite Line 300 - Zkracena small, Leva strana · SKU CULILI300-SL · €371.40 · In stock · Left side, S, Desert Dusk
- Cumulus Lite Line 300 - Standardni-medium, Prava-strana · SKU CULILI300-MP · €350.30 · In stock · M, Desert Dusk, Right side
- Cumulus Lite Line 300 - Standardni medium, Leva strana · SKU CULILI300-ML · €350.30 · In stock · Left side, M, Desert Dusk

## Related

- [Cumulus X-Lite 300](/p/cumulus-x-lite-300.md)
- [Sea To Summit Aeros Ultralight Pillow (2026)](/p/sea-to-summit-aeros-ultralight-pillow-2026.md)
- [Cumulus Lite Line 400](/p/cumulus-lite-line-400.md)
- [Therm-a-Rest Z Lite Sol](/p/therm-a-rest-z-lite-sol.md)
- [Sea To Summit Spark II](/p/sea-to-summit-spark-2.md)
- [EVA Foam Pad 3 mm](/p/eva-foam-pad-3-mm.md)
- [Cumulus Panyam 450](/p/cumulus-panyam-450.md)
- [Sea To Summit Lightweight Dry Bag](/p/sea-to-summit-lightweight-dry-bag.md)

## Shipping and returns

- [Shipping and payment](/shipping-payment)
- [Returns](/return-order)

## Images

- ![Cumulus Lite Line 300](https://media.gramino.com/medusa/af60c79aa4af77ef3b1cfb63bcf818bd-01KWHVN14ZVZ0WF2EBA1G8KXJG.webp)
- ![Cumulus Lite Line 300](https://media.gramino.com/medusa/cd64bf558c0f9f62cb122c09b5f955c4-01KWHVN16YJQSWX6SBKPMC96K4.webp)
- ![Cumulus Lite Line 300](https://media.gramino.com/medusa/07a3930735e74dcce4a335614206d1db-01KWHVN18HZTP8MDQXEEYGJNYT.webp)
- ![Cumulus Lite Line 300](https://media.gramino.com/medusa/57cbb957fc2d93871c1a52c98c80158e-01KWHVN19X5PSBK3QA2VDV6CB5.webp)
- ![Cumulus Lite Line 300](https://media.gramino.com/medusa/fc0ef536abc71fdaeb79311fec2012b9-01KWHVN1A7M69BN7NNJYSPS6FQ.webp)
- ![Cumulus Lite Line 300](https://media.gramino.com/medusa/ec89a7e0a419bdcec2aa39fac2bc4ca9-01KWHVN1BETJETB059F2JVQX7Q.webp)
- ![Cumulus Lite Line 300](https://media.gramino.com/medusa/6d5aac37a5f54fe9b8bbb311bf56000e-01KWHVN1CYHQ2VZ7E2SJVCMTEH.webp)
- ![Cumulus Lite Line 300](https://media.gramino.com/medusa/e78b64fd30ae2a8a5eeca614347004d0-01KWHVN1EXM0R1M6KT98GNZXK1.webp)

## Identifiers

- SKU: CULILI300-LL
- Handle: cumulus-lite-line-300
- Brand: Cumulus

This product is also available as [HTML](/p/cumulus-lite-line-300).

Category: [Sleeping bags](/c/sleep/sleeping-bags.md) · [Sitemap](/sitemap.md)

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