Exped
Exped Versa 4.5R (M, 183 x 52 cm)
Best use
- Made for
- Backpacking and wild camping
Why these labels
- Backpacking and wild camping: The maker states this use, and the published specs do not rule it out.
From the maker's stated use and the published specs.
- Summer wild camp: 6/10 UK, roughly May to September, nights above about 8 °C, sheltered pitches.
- Three-season hills: 6/10 UK hills in spring and autumn. Wind, rain, and nights near freezing.
- Winter camp: 6/10 UK winter or high ground. Below freezing, strong wind, possibly snow.
- Weight: 5/10 How much it adds to your pack, compared with the whole market.
R-value 4.4 (ASTM).
Lowest price we found
£109.99 at Ultralight Outdoor Gear
Go to Ultralight Outdoor Gear Compare 2 shopsCampers who want a built-in hand pump instead of a pump sack
- Type
- Air
- R-value
- 4.4 (ASTM)
- Weight
- 660 g (M)
- Thickness
- 7.5 cm
- Size
- 183 x 52 cm
Packed size 3.6 L, 25 cm long and 13.5 cm across Compare with a 2-litre bottle
About as long as a 2-litre bottle and a bit wider than one. Drawn to scale.
Where to buy
Ultralight Outdoor Gear £109.99 In stock. Free delivery. Free tracked UK delivery. 1 in stock when checked (an earlier check showed out of stock). List price £119.99.
View at shop: Ultralight Outdoor GearAlpinetrek £113.95 In stock. Free delivery. Navy, size M. Free UK delivery from £85.
View at shop: AlpinetrekPrices 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
Warmth
From maker's figures 7/10How well it stops the cold ground chilling you. 7: Better than most.
Exped lists R 4.4, labelled 'R-Value (ASTM)', in the R 4-5.4 band: spring, summer and autumn, not deep winter. Exped rates it three-season.
Thickness
From maker's figures 7/10How deep it is. Deeper is comfier, above all for side sleepers. 7: Better than most.
7.5 cm thick.
Quietness
Estimate from maker's specs: mat type (fewer than 3 reviews about noise) 5/10How little it crinkles or squeaks when you turn over. 5: Does the job. Average for wild-camping gear.
No review we found says how noisy it is, so this is an estimate from the mat type.
Weight
From maker's figures 5/10How much it adds to your pack. 5: Does the job. Average for wild-camping gear.
Exped gives 660 g for the M, in the 550-749 g band. Ultralight Outdoor Gear lists 691 g: same band.
Packed size
From maker's figures 5/10How much room it takes in or on your rucksack. 5: Does the job. Average for wild-camping gear.
Exped gives a packed size of 25 x 13.5 cm: 3.1416 x 6.75 x 6.75 x 25 = 3,578 cm3, about 3.6 L, in the 2.5-3.9 L band.
In short
Good for
- Campers who want a built-in hand pump instead of a pump sack
- Side sleepers who want 7.5 cm of cushioning and raised outer chambers
Strengths
- Integrated hand pump, so no separate pump sack to carry
- 75D recycled polyester shell, heavier fabric than the 20D to 30D used on ultralight mats (Exped's claim of robustness)
- Outer air chambers are slightly raised to cradle you and stop roll-off (Exped's design claim)
Weaknesses
- Heavy and bulky for the warmth: 660 g and about 3.6 L packed
- No independent hands-on review found, so comfort and durability are estimates, not reviewed scores
- Ultralight Outdoor Gear's own verdict says the built-in pump can take longer and more effort than a pump sack
Sources
We haven't tested this ourselves. Every score comes from these specs, tests and reviews.