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Backpacking Sleeping Bag Light 41° Trek500

Sale price: $40.00 Regular price: $59.99

Bag that can be twinned with the 2017 "ultralight" and 2018 "light" series. Wide temp. range: 41 to 59°F for extra comfort thanks to the 2 x 3/4 zippers with double sliders for temperature management.

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Sale price: $40.00 Regular price: $59.99

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Final Sale: No returns or exchanges

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San Francisco, 735 Market St. Options

Select an available color and size to see options.

Model: 8503639

Product Features

A photo of the Backpacking Sleeping Bag Light 41° Trek500 in use

Backpacking Sleeping Bag Light 41° Trek500 | sleep comfortably in temperatures above or equal to 41°F when backpacking or bivouacking.

Bag that can be twinned with the 2017 "ultralight" and 2018 "light" series. Wide temp. range: 41 to 59°F for extra comfort thanks to the 2 x 3/4 zippers with double sliders for temperature management.

Optimal temperature

Normal temperature rating 41°F / Limit temperature rating 32°F

Easy to transport

2.6 lbs in size L. Volume 11 liters. Stuff bag.

Sleeping comfort

Very comfortable mummy shape. 2 x 3/4 zippers with 2-way slide to ventilate.


Can be twinned with other models from the "Ultralight" 2017 & "light" 2018 range

Water repellent

Water-repellent fabric to optimize the thermal performance of your bag.

Product Lifestyle Image Gallery

Image Gallery

Backpacking Sleeping Bag Light 41° Trek500,brown 

Backpacking Sleeping Bag Light 41° Trek500,brown 

Backpacking Sleeping Bag Light 41° Trek500,brown 

Backpacking Sleeping Bag Light 41° Trek500,brown 

Backpacking Sleeping Bag Light 41° Trek500,brown

Product Customer Reviews

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Backpacking Sleeping Bag Light 41° Trek500,brown
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Warm + Fast Delivery!

3 days after purchase 2 of these bags they arrived at my home. Super stoked with the quality of the product and after searching far and wide I cant find any other compact tent that matches the price and quality of Trek 500 5degree Sleeping Bag - Light Yellow!


Great !

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Sleeping bag

The sleeping bag was excellent, my son used it on his activity holiday, easy to pack and unpack. Kept him warm during the night, easy to use, definitely recommend to this product...

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Did the job we were looking for

Bought for the ability to zip two bags together. Took them on a camping trip to Brittany in early June and had no real issues with it. Only comment would be I was nice and hot/cosy and my wife said she was sometimes a bit cold.

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Excellent bag very comfortable

I used this bag overnight in the foothills of our local mountains. It was a warm evening but clear skys soon lead to a drop in temperature from 18c down to just above freezing with the wind chill. In fact at sea level there was a frost at dawn. I slept in a single pair of trousers and a top and had the hood up and zips closed. I was comfortably warm all night, only waking as my companion had ventured outside to use the toilet and was suffering from the cold on coming back in and unable to warm again. I was delighted with the performance of the bag. I had camped out a few weeks prior in my old bag and woke before dawn shivering, I'm glad to say this bag exceeded my expectations and the old bag will be relegated to summer use. The bag packs down OK, it's a little bulky in the rucksack but I knew that before buying it. I bought the xl bag as I am 185cm 6'2" and well built so I wanted a bit of room. Recommended at this price

Sleeping bag

Used this on DofE. One night fine. Second night a bit chilly, but better than my previous bag.

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Toasty warm

The sleeping bag kept me toasty warm at the 2018 OMM in the Black Mountains, were the temperature s went below zero over night. The bag is also relatively light and small whilst being warm.

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Sleeping bag

I used this on a beach camp and another time up a mountain camp on a wintry night. It does what it says and easy to repack back into the pouch. Easy to clean. It’s also affordable compared to other brands that’s out in HKG market. The only thing I didn’t like is how bulky it was. I wish it was lighter but still for 5 degree weather with the same price. I had to bring this together w other camping equipment, so by itself it might be light, but with other camping equipment it becomes bulky to carry and heavy.

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Hi Marie Ann,

Thank you for supporting Decathlon Hong Kong and your feedback on your experience with our product!

We sincerely appreciate your insight! It's also our pleasure to ensure you have the best experience with our products! 

We can't wait to offer you more and better products in order to delight your sport experiences! 

If you have any more questions, comments, please feel welcome to reach back out as we would be more than happy to share and assist. Hope to see you around soon!

Stay healthy!


Decathlon Hong Kong Hiking & Trekking Team


Fabric is not good , even it is not sufficient for 5-7 degree temperature , It's not a good warm sleeping beg , I never recommend this product to any body .

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Hello Ajay

Thank you for taking out time to give your valuable review. We are sorry that you were not satisfied with the product. I suggest you to visit your nearest Decathlon store to have the product physically checked. Our team at the store would love to help you with the best possible solution.


Product Trainer and Passionate Backpacker



Super spací pytel pro dítě

Lehký, skladný, teplý.

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lehký, teplý, pohodlný . doporučuji ♥

lehký, teplý, pohodlný . doporučuji ♥

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Dobry spacak

Zatim naprosta spokojenost, otestovano 14 dni ve stanu, vcetne dost chladnych noci

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Skvělá táborová volba

Koupili jsme spacáky dětem a jsou s nimi spokojené. Není v nich zima a jsou příjemné.

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Spací pytel

Slabší spací pytel který je ideální na léto, velmi příjemný materiál. Sbalí se do velmi malého "balíčku"

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Additional Product Information



  • 100% Polyester cationic


  • 100% Polyester cationic

Outer fabric

  • 100% Polyester cationic

Carry bag

  • 100% Polyester cationic

Temperature rating:

On all of our sleeping bags, we display the comfort temperatures tested by an independent laboratory (AITEX) according to European standard NF ISO 23537 - 2017. The temperature rating is the lower limit at which the user is generally in thermal equilibrium and feels neither too cold nor too hot in a relaxed pose (for a standard woman and in normal conditions of use). Choose your sleeping bag according to the latter.

What are the limit temperature of use?

Limit temperature: temperature at which the user huddled up in the sleeping bag is generally in thermal equilibrium and feels neither too cold nor too hot (defined for a standard man under normal conditions of use).

However, this is what you need to know about the temperature ratings:

A sleeping bag does not generate warmth but retains the warmth produced by the body. If you feel tired and cold and slip into a cold and damp sleeping bag, you are likely to feel cold, however good it is! These temperatures therefore depend on the person's resistance to the cold (bulk, fatigue, etc.), their equipment (mattress that insulates from the cold, etc.), their clothing (naked, underwear, etc.) and the weather conditions (humidity, wind, etc.).

For more comfort when you slip into your sleeping bag:

Dress simply (just 1 layer of clothing is enough). Keep your head, hands and feet warm: hats, gloves, socks, hand or feet warmers, rubdown, etc. A bottle full of hot water can be used as a hot water bottle (as long as it will not open accidentally!) Contract your muscles (70% of the energy consumed is transformed into heat). However you should do this without moving as this can cause drafts of cold air. Use a liner sheet, ideally made of silk, to optimize the warmth inside your sleeping bag.


"Generous" mummy shape: wide at the shoulders and more narrow at the feet to optimize thermal insulation (no heat loss) and compact size, while retaining some freedom of movement. Width at shoulder height 30.1" and at feet height 12.6" in size L. Ergonomic hood with drawstring. 2 side zippers with double sliders, lined with a flap (sausage-shaped) made of insulating wadding (thermal bridges) and side openings.

Weight and size:

Size M 2.4 lbs, user up to 5'7" in height. Folded dimensions: Ø 15" x 6.7". Volume 10 L. Size L 2.6 lbs, user between 5'7" and 6'1". Folded dimensions: Ø 15" x 7.3". Volume 11 L. Size L 2.8 lbs, user between 5'7" and 6'1". Folded dimensions: Ø 15.7" x 7.7". Volume 12.5 L. Try out your sleeping bag before buying it in order to get the right size for your comfort.


This sleeping bag is guaranteed for a period of 5 years from the date of sale indicated on the receipt. The product covered by the warranty will be repaired or exchanged free of charge. The warranty covers the defects of your sleeping bag apart from those resulting from normal wear and tear and improper use. This special 5-year warranty will only be granted upon presentation of the product and sales receipt.



Storage instructions

Easily store your bag by stuffing it in its bag, feet end first. To maintain its fill power, which is what provides the thermal insulation, remove the bag and store it flat in a dry place.

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