Alpkit
Alpkit 0Hiro PrimaLoft Jacket (men's)
- Warmth: 7/10 How warm it keeps you standing still at camp.
- Weight: 4/10 How much it adds to your pack.
Cold, damp winter camps and belays where you stand still
- Weight
- 690 g (M)
- Insulation
- Synthetic
- Hood
- Yes
Where to buy
Alpkit £169.99 In stock. Free delivery. Forest and Maple in stock in size M, Chilli sold out. Free UK delivery over £60, £2.99 below that (alpkit.com/pages/shipping). Alpkit sells only through its own site and stores.
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
Warmth
Estimate from maker's specs: insulation weight (g/m²) 7/10How warm it keeps you standing still at camp. 7: Better than most.
Estimate from maker's specs
Weight
From maker's figures 4/10How much it adds to your pack. 4: A bit below average.
Alpkit publishes 690 g for the men's medium, in the 600-799 g band.
In short
Good for
- Cold, damp winter camps and belays where you stand still
- Winter hill days as an outer layer over a fleece, with a shell for heavy rain
- Cold, wet UK weather where a down jacket would soak
Strengths
- Alpkit's warmest synthetic jacket: 120 g/m² of PrimaLoft Silver Hi-Loft Ultra in the body, 80 g/m² in the sleeves and hood
- Tough nylon 6,6 outer with a 5K/5K membrane, so it sheds sleet and drizzle
- Helmet-compatible hood with a wired peak, two-way main zip and inner cuffs
Weaknesses
- 690 g in size M, one of the heavier Alpkit jackets
- Not seam-taped, so it is not a waterproof
- Walkhighlands found it can run too warm on steep uphill walks in mild weather
- No packed size published; only two sources found, so warmth, damp performance and durability are estimates, not reviewed scores
Sources
We haven't tested this ourselves. Every score comes from these specs, tests and reviews.