Alpkit
Alpkit Men's Aztec Long Sleeve (merino blend, Outer Space)
- Weight: 7/10 How much it adds to your pack.
- Warmth: 4/10 How much the fabric insulates next to your skin. Heavier fabric is warmer and slower to dry.
Summer and shoulder-season hillwalking and wild camps, as a light next-to-skin layer
- Weight
- 180 g (M)
- Fabric weight
- 140 g/m²
- Fibre
- Blend
- Merino
- 50%
Where to buy
Alpkit £54.99 In stock. Delivery £2.99. Outer Space, size M in stock (also S, L, XL, XXL). Standard delivery £2.99, free over £60. No other UK shop found.
View at shop: AlpkitPrices 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 7/10How much it adds to your pack. 7: Better than most.
Alpkit's UK and EU pages give 180 g for size M. 180 g is in the 160–199 g band, which is the 4 band.
Warmth
From maker's figures 4/10How much the fabric insulates next to your skin. Heavier fabric is warmer and slower to dry. 4: A bit below average.
Alpkit's UK and EU pages give the fabric at 140 g/m². 140 g/m² is in the 110–149 g/m² band, which is the 2 band. It is a light fabric by design: Alpkit pitches it for cool mornings and ridgelines, and as a light mid-layer.
In short
Good for
- Summer and shoulder-season hillwalking and wild camps, as a light next-to-skin layer
- Long days and multi-day trips where a merino blend is worn several days between washes, which is what Alpkit designs it for
- Packing light, at 180 g in size M
Strengths
- 180 g in size M, per Alpkit
- 50% merino and 50% recycled polyester: Alpkit says the polyester adds strength and stretch
- Flatlock seams made to sit under rucksack straps, per Alpkit
- Covered by Alpkit's 3-year Alpine Bond return, repair or replace promise
Weaknesses
- 140 g/m² fabric gives little warmth (score 4), so it needs a layer over it in the cold
- No independent hands-on test of this top found, so comfort, odour and durability are estimates, not reviewed scores
Sources
We haven't tested this ourselves. Every score comes from these specs, tests and reviews.