Sea to Summit
Sea to Summit Aeros Down Pillow (Regular, 34 x 24 x 12 cm)
- Weight: 8/10 How much it adds to your pack.
- Packed size: 10/10 How much room it takes in your rucksack.
Ultralight backpackers who want a softer top than a bare air pillow at 70 g
- Type
- Hybrid
- Weight
- 70 g
- Height
- 12 cm
- Size
- 34 x 24 cm
Packed size 0.23 L, 9.5 cm long and 5.5 cm across Compare with a 2-litre bottle
Shorter than a 2-litre bottle and thinner than one. Drawn to scale.
Where to buy
Cotswold Outdoor £47.95 In stock. Delivery £6.95. Regular in Neutral Grey; the shop shows an RRP of £60; free next-day delivery over £125.
View at shop: Cotswold OutdoorUltralight Outdoor Gear £54.99 In stock. Free delivery. Shop RRP £59.99; free tracked UK delivery.
View at shop: Ultralight Outdoor GearSea to Summit £60 In stock. Delivery £4.50. Regular in Grey; free delivery over £75.
View at shop: Sea to SummitPrices 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 8/10How much it adds to your pack. 8: Clearly better than most.
Brand lists 70 g for the Regular, the bottom of the 70–119 g band. CleverHiker weighed its Regular at about 71 g and OutdoorGearLab at 73.7 g with its stuff sack. The brand tags the pillow as a 2026 style with the same figures as before, and the reviews' sizes (CleverHiker and OutdoorGearLab about 71–74 g, Treeline 34 x 24 x 12 cm) match the current Regular.
Packed size
From maker's figures 10/10How much room it takes in your rucksack. 10: The best you can buy for this.
Brand gives a packed size of 9.5 cm long and 5.5 cm across: 3.1416 x 2.75 x 2.75 x 9.5 = 226 cm³, about 0.23 L, in the under 0.6 L band. OutdoorGearLab measured 0.4 L packed.
In short
Good for
- Ultralight backpackers who want a softer top than a bare air pillow at 70 g
- Sleepers on a Sea to Summit mat: PillowLock patches hold it in place
- Back sleepers and anyone who stays put in the night: the Regular surface is small
Strengths
- 70 g and about 0.23 L: packs to 9.5 x 5.5 cm, about the size of a large egg
- Down-filled top softens the air chamber against the cheek and ear (CleverHiker)
- Mini valve lets you fine-tune the firmness and empty the pillow quickly
- PillowLock hook-and-loop patches included for Sea to Summit mats
Weaknesses
- Small sleeping surface (CleverHiker): restless sleepers may slide off
- Rectangular shape supports the neck less than curved pillows such as the Aeros Premium (CleverHiker)
- Thin, slippery cover (Treeline): the pillow can slide on slick mats
- Down needs care when washing and drying; the pillow is hand-wash only, with no removable cover
- Not enough evidence yet on long-term durability
Sources
We haven't tested this ourselves. Every score comes from these specs, tests and reviews.
ShowHide sources (4)
- Sea to Summit UK: Aeros Down Pillow, Regular (70 g, 34 x 24 x 12 cm, packed 9.5 x 5.5 cm)
- CleverHiker: Sea to Summit Aeros Down Pillow Review (Regular and XL, more than 75 nights)
- OutdoorGearLab: Best Camping Pillows (Sea to Summit Aeros Down, tested, 12th of 17)
- Treeline Review: Best Backpacking Pillows of 2026 (Sea to Summit Aeros Down, field-tested)