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SIMOND

5°c trekking lightweight and compact down sleeping bag mt900

Dhs. 1,025.00
Sold out

Size Guide

Size Guide

Size Guide

MEN'S
Find My Size
IN CM
Find Size
Tops
UK Size Chest (in) Waist (in)
XS 33.1 – 34.3 27.6 – 28.7
S 34.6 – 35.8 29.1 – 30.3
M 36.2 – 37.4 30.7 – 31.9
L 37.8 – 40.6 32.3 – 35.0
XL 40.9 – 44.5 35.4 – 39.4
2XL 44.9 – 48.4 39.8 – 43.7
3XL 48.8 – 53.1 44.1 – 48.4
Bottoms
UK Size Low Hip (in) Waist (in)
XS 31.5 – 33.5 26.0 – 28.0
S 33.9 – 35.8 28.3 – 30.3
M 36.2 – 38.2 30.7 – 32.7
L 38.6 – 40.9 33.1 – 35.0
XL 41.3 – 43.7 35.4 – 38.2
2XL 44.1 – 46.5 38.6 – 41.3
3XL 46.9 – 49.6 41.7 – 44.5
HOW TO MEASURE:

1- Head: Wrap a tape measure around your head, above your eyebrows. Make sure it is parallel to the floor when you're looking straight ahead.

2- Chest: Wrap a tape measure around your back and measure the fullest part of your chest. Make sure it's straight and parallel to the floor. Look straight ahead, tighten the tape and breathe normally.

3- Waist: Wrap a tape measure around the narrowest part of your waist, above your belly button. Raise your head, tighten the tape and breathe normally.

4- Hand: Hold a tape measure at the bend of the thumb. Wrap around your palm.

How to measure
WOMEN'S
Find My Size
IN CM
Find Size
Tops
.5 – 32.7.9 – 48.4
UK Size Low Hip (in) Waist (in)
2XS 22.8 – 24.4
XS 33.1 – 34.3 24.4 – 25.6
S 34.6 – 35.8 26.0 – 27.2
M 36.2 – 37.4 27.6 – 28.7
L 37.8 – 40.6 29.1 – 33.1
XL 40.9 – 44.5 33.5 – 37.8
2XL 38.2 – 42.5
Bottoms
.1 – 33.5.9 – 47.2
UK Size Low Hip (in) Waist (in)
2XS 23.6 – 24.8
XS 33.5 – 35.4 25.2 – 26.8
S 35.4 – 37.8 27.2 – 28.7
M 37.8 – 40.2 29.1 – 31.1
L 40.2 – 42.5 31.5 – 33.9
XL 42.5 – 44.9 34.3 – 36.6
2XL 37.0 – 39.4
Bra
UK Size Bust (in) Underbust (in)
2XS 30.7 – 31.5 24.8 – 26.4
XS 31.5 – 33.5 24.8 – 28.3
S 33.5 – 35.4 26.8 – 30.3
M 35.4 – 37.4 28.7 – 32.3
L 37.4 – 39.4 30.7 – 34.3
XL 39.4 – 41.3 32.7 – 36.2
2XL 41.3 – 43.3 34.6 – 38.2
HOW TO MEASURE:

1- Head: Wrap a tape measure around your head, above your eyebrows. Make sure it is parallel to the floor when you're looking straight ahead.

2- Bust: Wrap a tape measure around your back and measure the fullest part of your bust. Make sure it's straight and parallel to the floor. Look straight ahead, tighten the tape and breathe normally.

3- Underbust: Directly below the bust, wrap a tape measure around the ribcage. Make sure it's straight and parallel to the floor. Raise your head, tighten the tape and breathe normally.

4- Waist: Wrap a tape measure around the narrowest part of your waist, above your belly button. Raise your head, tighten the tape and breathe normally.

5- Hips: Wrap a tape measure around the fullest part of your hips.

6- Hand: Hold a tape measure at the bend of the thumb. Wrap around your palm.

How to measure
KIDS'
Find My Size
IN CM
Find Size
Boys
Age Height (in) Chest (in) Waist (in) Low Hip (in)
6 months 24.0 – 27.2 16.5 – 16.9 14.6 – 15.2 16.5 – 17.1
9 months 27.6 – 28.3 16.9 – 17.3 15.2 – 15.6 17.1 – 17.7
12 months 28.7 – 29.5 17.3 – 17.7 15.6 – 16.1 17.7 – 18.5
18 months 29.9 – 31.9 18.1 – 18.5 16.3 – 16.9 18.5 – 19.3
24 months 32.3 – 34.6 18.9 – 19.3 17.3 – 18.1 19.3 – 20.3
2 – 3 years 35.0 – 37.4 19.7 – 20.1 18.1 – 18.9 20.3 – 20.9
3 – 4 years 37.8 – 40.2 20.5 – 21.3 19.3 – 20.1 21.3 – 22.4
4 – 5 years 40.6 – 44.1 21.7 – 22.4 20.1 – 20.9 22.8 – 24.0
5 – 6 years 44.5 – 48.0 22.8 – 23.6 20.9 – 21.7 24.4 – 25.6
7 – 8 years 48.4 – 51.2 24.4 – 24.8 21.7 – 22.4 26.0 – 27.2
8 – 9 years 51.6 – 55.1 25.2 – 26.4 22.8 – 23.6 27.6 – 28.7
10 – 11 years 55.5 – 59.1 26.8 – 28.7 24.0 – 25.2 29.1 – 30.3
12 – 13 years 59.4 – 63.0 29.1 – 31.5 25.6 – 27.2 30.7 – 33.1
14 – 15 years 63.4 – 67.7 31.9 – 34.6 27.6 – 29.1 33.5 – 35.8
Girls
Age Height (in) Chest (in) Waist (in) Low Hip (in)
6 months 24.0 – 27.2 15.4 – 16.9 13.4 – 15.2 15.4 – 17.1
9 months 27.6 – 28.3 16.9 – 17.3 15.2 – 15.6 17.1 – 17.7
12 months 28.7 – 29.5 17.3 – 17.7 15.6 – 16.1 17.7 – 18.5
18 months 29.9 – 31.9 18.1 – 18.5 16.3 – 16.9 18.5 – 19.3
24 months 32.3 – 34.6 18.9 – 19.3 17.3 – 18.1 19.3 – 20.3
2 – 3 years 35.0 – 37.4 19.7 – 20.1 18.1 – 18.9 20.3 – 20.9
3 – 4 years 37.8 – 40.2 20.5 – 21.3 19.3 – 20.1 21.3 – 22.4
4 – 5 years 40.6 – 44.1 21.7 – 22.4 20.1 – 20.9 22.8 – 24.0
5 – 6 years 44.5 – 48.0 22.8 – 23.6 20.9 – 21.7 24.4 – 25.6
7 – 8 years 48.4 – 51.2 24.4 – 24.8 21.7 – 22.4 26.0 – 27.2
8 – 9 years 51.6 – 55.1 25.2 – 26.4 22.8 – 23.6 27.6 – 28.7
10 – 11 years 55.5 – 58.3 26.8 – 28.0 24.0 – 24.8 29.1 – 31.9
12 – 13 years 58.7 – 62.6 28.3 – 31.9 25.2 – 26.4 32.3 – 35.0
14 – 15 years 63.0 – 65.4 32.3 – 33.9 26.8 – 28.0 35.4 – 36.6
HOW TO MEASURE:

1- Height: Stand against a wall, barefoot or in socks, heels pasted to the wall. Stand right, then hold a book or flat object on the top of your head. Block the book, mark the bottom edge of the book. Measure the distance from the floor to the mark.

2- Head: Wrap a tape measure around your head, above your eyebrows. Make sure it is parallel to the floor when your head is straight.

3- Hand: Hold a tape measure at the bend of the thumb. Wrap around your palm.

How to measure
FOOTWEAR
Find My Size
IN CM
Find Size
Men's Footwear
UK Size EU Size Foot Length (in)
5.5 38.5 9.6
6 39 9.6
6 39.5 9.8
6.5 40 10.0
6.5 40.5 10.0
7 41 10.2
7.5 41.5 10.4
7.5 42 10.4
8 42.5 10.6
8.5 43 10.8
9 43.5 11.0
9.5 44 11.0
10 44.5 11.2
10.5 45 11.2
10.5 45.5 11.4
11 46 11.6
11.5 46.5 11.6
Women's Footwear
UK Size EU Size Foot Length (in)
2 34 8.25
2.5 34.5 8.5
3 35 8.7
3 35.5 8.9
3.5 36 8.9
4 36.5 9.1
4.5 37 9.3
4.5 37 9.3
5 38 9.4
5.5 38.5 9.6
5.5 39 9.6
6 39.5 9.8
6.5 40 10.0
6.5 40.5 10.0
7 41 10.2
7.5 41.5 10.4
8 42 10.4
Unisex Footwear
UK Women's / Men's EU Size Foot Length (in)
W3 / M2.5 35 8.6
W3.5 / M3 36 8.9
W4 / M3.5 36.5 9.1
W4.5 / M4 37 9.3
W5 / M4.5 37.5 9.3
W5.5 / M5 38 9.4
W6 / M5.5 39 9.6
W6.5 / M6 39.5 9.8
W7 / M6.5 40 10.0
W7.5 / M7 41 10.2
W8 / M7.5 41.5 10.4
W8.5 / M8 42 10.4
W9 / M8.5 43 10.8
W9.5 / M9 43.5 11.0
W10 / M9.5 44 11.0
W10.5 / M10 44.5 11.2
W11 / M10.5 45 11.2
W12 / M11 46 11.6
W13 / M12 47 11.8
W14 / M12.5 48 12.0
HOW TO MEASURE:

Foot length: Stand against a wall, heels touching the wall. Put an object (e.g. book) against your longest toe. Measure the length between the wall and the object. Repeat this process for the other foot. If the lengths are different, choose the largest.

How to measure
ACCESSORIES
Measurements
IN CM
Headwear (Caps, Beanies, Hats)
UK Size Head (in)
2XS 18.5 – 19.7
XS 19.7 – 20.9
S 20.9 – 22.0
M 22.0 – 23.2
L 23.2 – 24.4
Helmets
UK Size Head (in)
2XS 17.3 – 19.3
XS 18.5 – 20.5
S 20.5 – 21.7
M 21.7 – 23.2
L 23.2 – 24.4
Gloves
UK Size Palm perimeter (in) Hand length (in)
2XS 7.0 – 7.3 6.3 – 6.6
XS 7.3 – 7.6 6.7 – 6.9
S 7.6 – 7.9 7.0 – 7.2
M 8.0 – 8.2 7.2 – 7.4
L 8.3 – 8.5 7.4 – 7.7
XL 8.6 – 8.9 7.7 – 7.9
2XL 8.9 – 9.2 8.0 – 8.1
3XL 9.2 – 9.5 8.2 – 8.4
HOW TO MEASURE:

1- Head: Wrap a tape measure around your head, above your eyebrows. Make sure it is parallel to the floor when your head is straight.

2- Hand: Hold a tape measure at the bend of the thumb. Wrap around your palm.

BIKES
Measurements
IN CM
Kids' Bikes
Bike size Height
12" 2'5" – 3'0"
14" 3'0" – 3'5"
16" 3'5" – 3'11"
20" 3'11" – 4'5"
24" 4'5" – 5'1"
Road & Gravel Bikes
Bike size Height
XS 5'1" – 5'5"
S 5'5" – 5'8"
M 5'8" – 5'11"
L 5'11" – 6'2"
XL 6'2" – 6'7"
Mountain Bikes
Bike size Height
S 4'11" – 5'5"
M 5'5" – 5'9"
L 5'9" – 6'0"
XL 6'0" – 6'7"
Ref: 8799903
Size: L
Color : black
Home Delivery 2 - 4 Days
Up to 2-year warranty
Secure Payments
Description

This sleeping bag, made from 90% down and 10% recycled feathers, allows you to sleep comfortably at temperatures above or at 5°C.

What are the features of the MT900 5°C Down sleeping bag?

Anatomical hood with drawstring. YKK double-slider zip, equipped with an anti-snag system, allowing optimal ventilation. A baffle along the zip prevents heat loss. Inner zipped pocket. Two loops at the bottom of the bag allow it to be hung up to air or dry. Comes with a storage bag in perforated fabric.4 cm high compartments, separated by mesh partitions positioned in a Z-shape to prevent the formation of thermal bridges.

How resistant is the fabric on the MT900 5°C Down sleeping bag?

The outer fabric is 100% polyamide 27g/m2 in 10 denier and Ripstop 30 denier. This fabric can withstand 80,000 abrasion cycles. Durability is calculated using the Martindale test (Standard 12 947-2). This test involves rubbing the material of the bag against another material to determine the product's wear limits. The inner lining is made from a 100% polyamide fabric in 20 denier, weighing 35 g/m2.

How to stay warm in the MT900 5°C Down sleeping bag

Simply dress in light clothing (one layer, ideally Merino wool, is sufficient). Warm up your extremities with a hat, gloves, socks and hand/foot warmers if necessary. Use a sleeping bag liner to optimise warmth and avoid washing your sleeping bag too often. Choose a mattress with good insulation (R-value > 3). And here's a little tip: contract your muscles (70% of the energy consumed is converted into heat) but don't make any movements that cause cold!

How to wash the MT900 5°C Down sleeping bag

Even if you regularly use a bag liner, you will need to wash your down bag from time to time. You will find all the information you need on the Decathlon Sports Advice website. In summary: 1/ Machine wash at 30°C with two or three tennis balls. Gentle spin cycle. Use a special down detergent (ref: 8817232) 2/ Tumble dry with 2 or 3 tennis balls, and repeat 2 or 3 times until completely dry.

How is the material used in this sleeping bag manufactured?

This product does not contain any intentionally-added PFAS treatments.

Weight and dimensions of the MT900 5°C Down sleeping bag (may vary by +/- 5% due to production tolerances).

Size S (users ≤ 1.59 m): 670 g (including 280 g of down/feathers)Folded dimensions: W 27 cm Ø 15 cmVolume 6.7 L Size M (users between 1.60 m and 1.69 m): 750 g (including 322 g of down/feathers)Folded dimensions: W 27 cm Ø 16 cmVolume 7,6 L Size L (users between 1.70 m and 1.84 m): 830 g (including 370 g of down/feathers)Folded dimensions: W 27 cm Ø 17 cmVolume 8,5 L Size XL (users between 1.85 m and 2 m): 930 g (including 420 g of down/feathers)Folded dimensions: W 31 cm Ø 18 cmVolume 9,5 L

Which mattress should I use this sleeping bag with?

The protocol for measuring the thermal performance of a sleeping bag is to use a mattress with a thermal resistance corresponding to an R-value of 4.8. If you use a less insulating mattress, the thermal performance of your sleeping bag will be reduced. We therefore recommend that you use an insulating mattress for better thermal comfort.

What is comfort temperature?

We display the comfort temperatures that are determined by an independent lab (AITEX) on all our sleeping bags, in accordance with the international standard ISO 23537-1: 2022. Comfort temperature is the minimum temperature at which an average person (female, 25 years old, 60 kg, 1.60 m) feels comfortable and not cold when they are in a relaxed position. Choose your sleeping bag accordingly.

What are recycled feathers?

Using recycled feathers involves using a mixture of down and feathers from products that cannot be reused. This limits the use of new resources by recycling existing materials that would otherwise be discarded. The quality of the filling is checked through lab tests to make sure it maintains its technical properties and keeps you warm.

And what is the limit temperature rating?

The limit temperature rating is the minimum temperature at which an average person (male, 25 years old, 70 kg, 1.73 m) is able to sleep in a curled up position without feeling significantly cold. For your information, the extreme temperature is the minimum temperature at which a person can survive (risk of hypothermia) for six hours. This is a safety measure, not a comfort measure.

How to repair the MT900 5°C Down sleeping bag

When trekking, you may well get a tear in your sleeping bag! The good news is that it can be repaired to prevent the tear from getting bigger or the synthetic fibres from escaping. We recommend using self-adhesive repair patches (ref: 8777140). If you don't feel comfortable doing this yourself, we offer a repair service in our Decathlon stores and one of our specialists can apply a heat-bonded patch for you.

Warm and lightweight thanks to the fill power (700 CUIN) of the down used, this sleeping bag is also highly compressible. Mummy shape and wrap-around hood that is adjustable with a drawstring.

Optimum temperature

Comfort rating: 5°C, lower limit: 0°C. 370 g of 700 CUIN down (L)

Lightweight

In size L. Weight: 830 g (770 g sleeping bag alone). Volume: 8.5 L non-compressd

Sleeping quality

Mummy shape, anatomical hood and ergonomic footbox

Ease of use

3/4-length zip with anti-jamming mechanism

Water repellent

The outer surface of the fabric is treated to repel water (PFC & PFAS-free)

This sleeping bag, made from 90% down and 10% recycled feathers, allows you to sleep comfortably at temperatures above or at 5°C.

This sleeping bag, made from 90% down and 10% recycled feathers, allows you to sleep comfortably at temperatures above or at 5°C.

What are the features of the MT900 5°C Down sleeping bag?

Anatomical hood with drawstring. YKK double-slider zip, equipped with an anti-snag system, allowing optimal ventilation. A baffle along the zip prevents heat loss. Inner zipped pocket. Two loops at the bottom of the bag allow it to be hung up to air or dry. Comes with a storage bag in perforated fabric.4 cm high compartments, separated by mesh partitions positioned in a Z-shape to prevent the formation of thermal bridges.

How resistant is the fabric on the MT900 5°C Down sleeping bag?

The outer fabric is 100% polyamide 27g/m2 in 10 denier and Ripstop 30 denier. This fabric can withstand 80,000 abrasion cycles. Durability is calculated using the Martindale test (Standard 12 947-2). This test involves rubbing the material of the bag against another material to determine the product's wear limits. The inner lining is made from a 100% polyamide fabric in 20 denier, weighing 35 g/m2.

How to stay warm in the MT900 5°C Down sleeping bag

Simply dress in light clothing (one layer, ideally Merino wool, is sufficient). Warm up your extremities with a hat, gloves, socks and hand/foot warmers if necessary. Use a sleeping bag liner to optimise warmth and avoid washing your sleeping bag too often. Choose a mattress with good insulation (R-value > 3). And here's a little tip: contract your muscles (70% of the energy consumed is converted into heat) but don't make any movements that cause cold!

How to wash the MT900 5°C Down sleeping bag

Even if you regularly use a bag liner, you will need to wash your down bag from time to time. You will find all the information you need on the Decathlon Sports Advice website. In summary: 1/ Machine wash at 30°C with two or three tennis balls. Gentle spin cycle. Use a special down detergent (ref: 8817232) 2/ Tumble dry with 2 or 3 tennis balls, and repeat 2 or 3 times until completely dry.

How is the material used in this sleeping bag manufactured?

This product does not contain any intentionally-added PFAS treatments.

Weight and dimensions of the MT900 5°C Down sleeping bag (may vary by +/- 5% due to production tolerances).

Size S (users ≤ 1.59 m): 670 g (including 280 g of down/feathers)Folded dimensions: W 27 cm Ø 15 cmVolume 6.7 L Size M (users between 1.60 m and 1.69 m): 750 g (including 322 g of down/feathers)Folded dimensions: W 27 cm Ø 16 cmVolume 7,6 L Size L (users between 1.70 m and 1.84 m): 830 g (including 370 g of down/feathers)Folded dimensions: W 27 cm Ø 17 cmVolume 8,5 L Size XL (users between 1.85 m and 2 m): 930 g (including 420 g of down/feathers)Folded dimensions: W 31 cm Ø 18 cmVolume 9,5 L

Which mattress should I use this sleeping bag with?

The protocol for measuring the thermal performance of a sleeping bag is to use a mattress with a thermal resistance corresponding to an R-value of 4.8. If you use a less insulating mattress, the thermal performance of your sleeping bag will be reduced. We therefore recommend that you use an insulating mattress for better thermal comfort.

What is comfort temperature?

We display the comfort temperatures that are determined by an independent lab (AITEX) on all our sleeping bags, in accordance with the international standard ISO 23537-1: 2022. Comfort temperature is the minimum temperature at which an average person (female, 25 years old, 60 kg, 1.60 m) feels comfortable and not cold when they are in a relaxed position. Choose your sleeping bag accordingly.

What are recycled feathers?

Using recycled feathers involves using a mixture of down and feathers from products that cannot be reused. This limits the use of new resources by recycling existing materials that would otherwise be discarded. The quality of the filling is checked through lab tests to make sure it maintains its technical properties and keeps you warm.

And what is the limit temperature rating?

The limit temperature rating is the minimum temperature at which an average person (male, 25 years old, 70 kg, 1.73 m) is able to sleep in a curled up position without feeling significantly cold. For your information, the extreme temperature is the minimum temperature at which a person can survive (risk of hypothermia) for six hours. This is a safety measure, not a comfort measure.

How to repair the MT900 5°C Down sleeping bag

When trekking, you may well get a tear in your sleeping bag! The good news is that it can be repaired to prevent the tear from getting bigger or the synthetic fibres from escaping. We recommend using self-adhesive repair patches (ref: 8777140). If you don't feel comfortable doing this yourself, we offer a repair service in our Decathlon stores and one of our specialists can apply a heat-bonded patch for you.

Warm and lightweight thanks to the fill power (700 CUIN) of the down used, this sleeping bag is also highly compressible. Mummy shape and wrap-around hood that is adjustable with a drawstring.

Optimum temperature

Comfort rating: 5°C, lower limit: 0°C. 370 g of 700 CUIN down (L)

Lightweight

In size L. Weight: 830 g (770 g sleeping bag alone). Volume: 8.5 L non-compressd

Sleeping quality

Mummy shape, anatomical hood and ergonomic footbox

Ease of use

3/4-length zip with anti-jamming mechanism

Water repellent

The outer surface of the fabric is treated to repel water (PFC & PFAS-free)

This sleeping bag, made from 90% down and 10% recycled feathers, allows you to sleep comfortably at temperatures above or at 5°C.