# Mammut Comfort Fiber Bag -15C L Sleeping Bag

The Mammut Comfort Fiber Bag is listed as a size L mummy sleeping bag with a -15°C temperature rating. Its listed weight is 730 Grams, and the product information describes a central two-way zip for climate regulation.

- [Original product page](https://bargainpostbox.co.uk/product/mammut-comfort-fiber-bag-minus-15c-l-sleeping-bag)
- [View offer](https://bargainpostbox.co.uk/visit/mammut-comfort-fiber-bag-minus-15c-l-sleeping-bag)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: Mammut
- Model: QUXING
- Category: Sports & Outdoors > Camping & Hiking
- Price: 166.30 GBP
- Previous price: 195.71 GBP
- Discount: 15%
- Price checked: 2026-11-14T19:40:53.606Z
- Rating: 3.7 / 5
- Reviews: 7

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- The listing gives a -15°C temperature rating and describes the bag as tested to EN ISO 23537-1:2016.
- A central two-way zip is described as allowing climate regulation.
- An insulated strip along the zip is claimed to help limit cold bridges.
- The product information describes an updated YKK zip intended to prevent fabric jamming.

## Pros

- The central two-way zip can be opened from different points to adjust ventilation, according to the listing.
- The insulated zip covering is a concrete design feature aimed at reducing cold spots along the closure.

## Specifications

### Identity
- Brand: Mammut
- Model: QUXING
### Dimensions and installation
- Form factor: Mummy
- Weight listed: 730 Grams
- Size: L
- Maximum recommended height: 6 Feet
### Materials and protection
- Material listed: Polyester
- Outer material: Nylon/Polyester
- Colour: deep cypress
### Temperature and use
- Temperature rating: -15°C
- Season listing: Spring/Summer
- Intended sport: Hiking
- Occupancy: 2 Person
- Thermal resistance: 15 R-value
- Age range: Adult
### Construction and features
- Closure: Zipper
- Special features: Easy Installation, Wind Noise Reduction

## Before you buy

- The listing combines a -15°C rating with a Spring/Summer season label and also gives conflicting use descriptors: Mummy shape and size L are listed alongside 2 Person occupancy, Easy Installation and Wind Noise Reduction. Confirm the intended configuration and rating interpretation before buying. These listing details are inconsistent, not proof of a product defect.

## A good fit for

- Hikers seeking a listed mummy sleeping bag with a central two-way zip and a claimed -15°C rating.
- Buyers who want polyester fill and an insulated zip covering, subject to confirming that the listed configuration suits their needs.

## Less suited to

- Anyone needing confirmed two-person dimensions or a clear seasonal comfort rating, since the listing does not resolve these details consistently.

## Customer feedback

Aggregate customer ratings are mixed, with responses spread across five-, four-, three- and two-star categories. The small rating sample does not establish why customers responded as they did or how the bag performs against its listed temperature rating.

## Frequently asked questions

### What temperature rating is listed?
The listing gives a temperature rating of -15°C and says the bag was tested according to EN ISO 23537-1:2016. It does not explain whether this is a comfort or limit rating.
### What size is this model?
The title specifies size L. The listing also gives a maximum height recommendation of 6 Feet.
### Is it a one-person or two-person bag?
The listing says 2 Person but also describes a Mummy shape. It does not provide dimensions to clarify the occupancy, so confirm the intended configuration before ordering.

## Alternative options

- [QEZER Down Sleeping Bag 4 Season, Lightweight Winter Sleeping Bag 16 Degree to -8 Degree for Adults and Kid Camping, Hiking and Backpacking Outdoor Filled 600+FP Down](https://bargainpostbox.co.uk/visit/mammut-comfort-fiber-bag-minus-15c-l-sleeping-bag)
- [ATEPA 700FP Down Backpacking Sleeping Bag, Ultralight Lightweight \| RDS Down insulation, ISO Limit 1℃, Recycled 15D nylon shell, Ultralight mummy design, Backpacking camping hiking](https://bargainpostbox.co.uk/visit/mammut-comfort-fiber-bag-minus-15c-l-sleeping-bag)
- [QEZER Winter Sleeping Bag for Adults, Lightweight Down Sleeping Bag -20 Degree for Cold Weather Camping and Mountaineering Outdoor with 650 FP Duck Down](https://bargainpostbox.co.uk/visit/mammut-comfort-fiber-bag-minus-15c-l-sleeping-bag)
- [Naturehike Snowbird RDS Down Mummy Sleeping Bag for Adults \| Cold weather backpacking sleeping bag for camping, hiking & trekking; RDS certified down, YKK zipper, compact & lightweight](https://bargainpostbox.co.uk/visit/mammut-comfort-fiber-bag-minus-15c-l-sleeping-bag)
- [HLITMOUT Ultralight Down Sleeping Bag with Pillow \| Lightweight and Compact,RDS Down,Regular and Large Size,4 Season,for Hiking, Backpacking and Camping Outdoor](https://bargainpostbox.co.uk/visit/mammut-comfort-fiber-bag-minus-15c-l-sleeping-bag)
- [Naturehike CW Series Down Sleeping Bag 650FP Ultralight Camping](https://bargainpostbox.co.uk/visit/mammut-comfort-fiber-bag-minus-15c-l-sleeping-bag)

## Images

![Mammut Comfort Fiber Bag -15C L Sleeping Bag — 1](https://bargainpostbox.co.uk/i/XXuUe-KawfjBsESTeXdVHA6-lB6UC7t32pEciZizIealeWN52_uceMb_j6A5R6VK_MWR5q3KWaujm5WTE3YDP8BS10Q4auyU-Go89olBSUMCe9dCgSgqR4g5.jpg)

![Mammut Comfort Fiber Bag -15C L Sleeping Bag — 2](https://bargainpostbox.co.uk/i/G9NRBymNiO6s6Ui9Vnz71hbaeqEZzXZtBvv9f3_GgTRoVV60Su7m9c20yOa2Vm-SpUL3evuil491F4--TjrHp7EK-VJBWYi5E9HgsT-vO8bz8jNaTbee8-Lb.jpg)

![Mammut Comfort Fiber Bag -15C L Sleeping Bag — 3](https://bargainpostbox.co.uk/i/0sc19EEEu9atr8HE5P9FD5B9XDuAJSo9AAp6IVlxKtFoMz9531FcHs9BDUdRfEFFXsyRtnsDbEsArY4nN_-0JuN3Cj989F4-THp87dC4ZFnsgrK7aUCZe09p.jpg)

![Mammut Comfort Fiber Bag -15C L Sleeping Bag — 4](https://bargainpostbox.co.uk/i/zizeKXnxX8CeE8HEkbYurtsexY7lN1zD8ZWoYUvSrwBUklni5eyEiJrtwQPCFx32kJJ68ChGubl-rTBKy7iBXJL_g70v1-Bx1CshoxI_i7rAt9GFwVyJ_2zp.jpg)

![Mammut Comfort Fiber Bag -15C L Sleeping Bag — 5](https://bargainpostbox.co.uk/i/k2zD6EIUHzmBSNsu2e3IWd1jF97url2HHAeW-d5WaeepMgLf1jeqeuPU8ce20aBFRQSDWyHn_h2kKclbkO_9hDd7ohRZ6uFc5KF6mXmN0ghNPPesYfF8k9Bx.jpg)

![Mammut Comfort Fiber Bag -15C L Sleeping Bag — 6](https://bargainpostbox.co.uk/i/NQz_mtGBRz5caOtdF9oxaGYaXz43WoBRA1D1c3leULvY8DrCvYy8xZHEnYBlzmkdJtmUA8O8HvBcyEQJFjT7zh_KRMmkRLyWBxTXNTYyZ2XepoYjNVBDkb08.jpg)

![Mammut Comfort Fiber Bag -15C L Sleeping Bag — 7](https://bargainpostbox.co.uk/i/Ii898oKSxLsI_JUnn7Eq1eyc4L75BgS1RPGH9QKIo511bnVblT_lIxit69JKi3LUdalq5duLGWZbQ-u1eAX5Kpy-X1yQA6gAQgvihgvsInKExX6g3Z__3GdX.jpg)