Simond
Simond MT500 Inflatable Trekking Pillow (34 x 23 x 9 cm)
- Weight: 6/10 How much it adds to your pack.
- Packed size: 8/10 How much room it takes in your rucksack.
Sleepers who like to stuff the cover with clothes instead of the air bladder
- Type
- Hybrid
- Weight
- 135 g
- Height
- 9 cm
- Size
- 34 x 23 cm
- Packed
- 0.6 L
Where to buy
Decathlon UK £14.99 In stock. Delivery from £2.99, worked out by size and weight in the basket.
View at shop: Decathlon UKPrices checked 8 Nov 2026 on each shop's own page; shops can change them. We earn no commission on these links; shops are listed by price. More
Our ratings (out of 10)
1 to 10, compared with the whole market. Each says what it's based on. How we score
Weight
From maker's figures 6/10How much it adds to your pack. 6: A bit better than average.
Decathlon UK lists 135 g (brand shown as Simond), in the 120–199 g band. The stuff sack in the photos is printed 132 g and carries a Forclaz logo with the name Trek Pillow (same band). Broken Back Mountains also gives 135 g.
Packed size
From maker's figures 8/10How much room it takes in your rucksack. 8: Clearly better than most.
Decathlon UK says 0.6 L once folded, the bottom of the 0.6–0.99 L band. No packed dimensions are published.
In short
Good for
- Sleepers who like to stuff the cover with clothes instead of the air bladder
- Shorter trips where 135 g and 0.6 L are no problem
Strengths
- Cover and inflatable bladder separate: the cover washes in the machine at 30 °C
- Cover can be filled with clothes if you leave the bladder at home
- Firmness is adjustable by pressing the valve; 2-year warranty
Weaknesses
- Heavier and bulkier than the ultralight pillows here: 135 g and 0.6 L
- No straps or loops to fix it to a mat, so it goes in the hood of the bag (Broken Back Mountains)
- Only 9 cm tall: too thin for a sleeper who needs more neck height (Broken Back Mountains)
- A Decathlon buyer finds the bladder fiddly because it is not held firmly in the cover
- Not puncture-proof (Decathlon): repair patches are sold separately
- No independent UK test: comfort and durability are estimates, not reviewed scores
Sources
We haven't tested this ourselves. Every score comes from these specs, tests and reviews.