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Images: Decathlon Simond and its retailers. Used for product identification.

Decathlon Simond

Decathlon Simond MT500 -5 °C

The cheapest lab-tested -5 °C bag we found. Heavy, but it shrugs off damp.

Weight
1,650 g
Comfort
-5 °Climit -10 °C
Packed
41 × 23 cm

Best price found

£79.99

at Decathlon · Price from Decathlon's UK search listing

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Prices checked 31 October 2026. We may earn a commission on these links.

  • Synthetic fill
  • Draught collar

Specifications

Weight
1,650 g
Packed size
41 × 23 cm
Comfort
Comfort -5 °C / limit -10 °C
Fill
Silicone-coated spiral polyester fibre wadding
Shell & construction
100% polyamide 38 g/m², 20 denier; Mummy with thick layered wadding
Rating Standard
ISO 23537 rating
Season
3-season (Decathlon's label)
Zip
3/4-length double-slider zip with anti-snag system and…
Manufacturer page →

Pros & cons

  • Warm with no cold spots even when partly wet
  • Large shoulder baffle and soft fabric; robust and reliable
  • Very low price for a -5°C comfort bag
  • Heavy and bulky at 1650 g / 16 L for size L
  • Advnture test may be an earlier MT500 -5°C version

Sources for this product

  1. 1Decathlon UK listing
  2. 2Decathlon UAE product data
  3. 3Advnture budget Decathlon feature, 24 Nov 2022

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