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Heiko [Mens] Primaloft jacket

Warm, windproof, and packable Primaloft Silver jacket that fits into your layering system no matter the conditions.

Heiko [Mens] Lightweight Primaloft Silver insulated jacket
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  • Black - Heiko [Mens] Lightweight Primaloft Silver insulated jacket
  • Nemo - Heiko [Mens] Lightweight Primaloft Silver insulated jacket
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Lakeland Mountain Marathons, cycle-touring, canoe-camping… You want to stay warm, but you want to stay light too. With the Heiko, it doesn’t have to be one or the other.

Heiko’s superpower is providing stashable warmth during light activity when the wind picks up. Quilted Primaloft Silver insulation keeps a low profile, making it ideal for layering under a shell when needed, and packing into its own chest pocket when it’s not.

The Primaloft Silver fill retains in thermal properties when wet, drying a lot quicker than down. This makes Heiko ideal for damp places, like the Lake District at, well, any time of year really…

An internal insulated zip baffle and chin guard keep out the draughts; articulated arms give you room to move.

Soft touch fabric feels great next to your skin, and a DWR coating keeps the moisture at bay.


Primaloft Silver insulation is a synthetic fiber which create millions of tiny air pockets to trap body heat. It uses water repellent finish to improve performance in extreme conditions, maintaining its thermal properties even when wet. It’s also easy to care for, packable, breathable, and super soft: mega!

Key features
  • 3 Year Alpine Bond
  • Lightweight and packable Primaloft jacket, ideal for light activity in UK conditions
  • Low-profile quilted insulation for easy layering
  • Stashes into its own chest pocket
  • Active cut: articulated arms for freedom of movement
  • Primaloft insulation retains thermal properties when wet
  • Soft-touch fabric for great next-to-skin feel
  • 2 zipped hand warmer pockets
  • 1 zipped chest pocket for valuables
  • Lycra bound cuffs and adjustable hem drawcord to keep out the draughts.
  • DWR coating keeps the moisture at bay
More images
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Vital stats

Fill: Primaloft Silver insulation (100% polyester), 60 gsm
Fabric: 100% Polyester, 20d, 45 gsm


Small: 285 g; Medium: 315 g; Large: 330 g; X-Large: 345 g

Origin: China

Size chart
Men's sizing
Chest (inches) 37" 40" 43" 46" 49"
Waist (inches) 30" 32" 34" 36" 38"
This size chart indicates the body measurements our garments are designed to fit. Measure yourself as described below, and use the size chart to find your size.
Chest: measure around your chest at the widest part. The tape measure should pass under your arms, and be level from front to back.
Waist: measure around your waist at the narrowest part.
Hips: standing with your feet together, measure around your hips at the widest part.


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Free UK Shipping on all orders

Free 2 day delivery to UK addresses is included in all orders so the price you see is the price you pay. Upgrade to next day at the checkout.

Free No hassle 123 Day Returns

Buy with confidence and if you are not happy, change your mind or want a swap for any reason then return it for free and we will exchange or refund no question. The price you see is the price you pay. Just return the kit as you receive it - in its original condition, unused, unworn, with original packaging and fit for resale.


We offer a range of finance options from 0% to 9.9% starting on orders over £500. Please give us a call on 01773 417007 to apply for finance. Our customer support heros will take your order and talk you through the quick and easy application process.

Alpine Bond

If one of our products does not meet your expectations upon delivery or, if it does not live up to the demands placed upon it, please return it within 3 years of purchase for repair, replacement or refund. If the problem is our fault then we will do this to your satisfaction if it’s your fault then we will help out the best we can.


22 Reviews


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Solo Hiker
Nice Jacket

The material and stitching on this jacket seems of a good quality.
I am 6ft tall, average build with long arms and the large size fits well in the body and the arms.
It's my personal preference but I would rather use a stuff bag than use the pocket to stow the jacket away .
Over all I am very pleased with this jacket.


I bought this in preparation for my first OMM. An excellent jacket, light and packs small. Will be using it on colder days at Leicester Tigers as well. Great value.


When it arrived and I saw how light and seemingly insubstantial it was, I was sceptical about how warm it would be but I have worn this at several degrees below 0, and with only a technical tee under it while on the move, and I have been nice and warm. They should have shown a photo of it packed as, when it's packed into the chest pocket, really is very small, and it immediately retired my bulky fleeces. Well done Alpkit.

Fleece replacement

I bought this jacket with a view to having a lightweight jacket in my pack when touring in the Alps next year. Fleece warmth but with some wind and rain resistance. I've worn it over a T this winter when the temperature is just above freezing and it works perfectly. I bought my first bit of Alpkit earlier in the year but I've become a dedicated fan. Quality is top notch and at 188cm at last I get a jacket (xl) that covers my lower back. Great job Alpkit.

Leroy Umbongo
Buy one!

I spent too long deliberating over buying other branded insulated jackets, and could not find what I really wanted. Luckily, I remembered Alpkit and their fantastic value for money gear. This jacket is awesome - lightweight, warm, well fitted and not over the top with logos and colour etc. Arrived quicker than expected too.
So if you're reading this having spent hours on the internet looking at over priced insulated jackets.... buy one, you won't be disappointed!

Leroy Umbongo
Buy one!

I spent too long deliberating over buying other branded insulated jackets, and could not find what I really wanted. Luckily, I remembered Alpkit and their fantastic value for money gear. This jacket is awesome - lightweight, warm, well fitted and not over the top with logos and colour etc. Arrived quicker than expected too.
So if you're reading this having spent hours on the internet looking at over priced insulated jackets.... buy one, you won't be disappointed!

Dan M
Best for under shell

Recently got this jacket and can't praise it enough. Excellent on its own and will fit well under a fairly snug shell jacket. It looks too thin, but works well on its own. Top quality gear

Quality Jacket

I bought the Heiko at the beginning of January (2017) as I've been looking for a winter jacket. It was my first outing in the Peak District this year. With temperatures touching -3 degrees and a wind chill factor of -10 this jacket performed brilliantly. With just a base layer and a micro fleece underneath it kept the icy wind and cold out and I was comfortably warm. With its lightweight and compact material its well worth every penny.
I highly recommend this product to anyone, It's a Quality Jacket.

Excellent jacket

Great jacket, good warmth/weight ratio, used it before/after ski touring and as a security jacket on the backpack. Packs good into chest pocket.
Good looking in orange, the S is not totally adjusted on me (1.68m, 60kg) but so it can be worn with 1/2/3 layers underneath.

The death of the fleece

Brilliant jacket. Looked at loads of other manufacturers and always something wrong. The Heiko ticks all the boxes. Lightweight; the correct number and position of pockets; a drop back. I'm 6ft and 75 kg and bought the medium which is great as a mid layer once you pull the tabs tighter on the hem. Would have liked to have seen other colours available, a black or forest, but am happy with the Nemo. I can see me wearing this socially all the time in the British weather. I travel a lot and this will be my go to jacket to take away with me. If you do make some in not so climby colours I will get another. Time to get rid of your fleeces and buy one of these! Great delivery and service also. Cheers chaps.

Nick C
Very Good and versatile

This has rapidly become my go to, do (almost) everything, warm layer.
I bought this to fill a gap- I have a heavier Primaloft Jkt for Scottish winter belay duties but that is often too heavy to carry "just in case" the rest of the year.

When walking and running I tend to run hot and very often wear a base layer and wind shirt only, through most of the year. The Heiko does a brilliant job as the over layer for stops or an extra layer if the weather turns bad and the going is too slow to keep warm. (I expect it to perform very well as the mandatory warm layer in the OMM kit list, striking as it does a good balance between weight and function). Walking with my 8 year old the pace is much slower and the extra warmth is welcome. Breathability is not quite what you'd want when working hard- but that's not what I bought it for.

For cragging it's the ideal warm layer- cutting out the wind and adding warmth when belaying. The hang loop when folded into it's pocket makes it easy to clip to the back of the harness (can we have a two way front zip for easier belaying on the MkII model, though, please).

It also gets pressed into duty as the quick grab daily dog walk jkt, and the post race warm layer for runs, sportives, triathlon etc where it works really well as a rapid boost when you can cool down quickly. Also partners well with jeans and trainers for the pub. Pence per wear, it stacks up as well, and often better, as anything else I own.

Cut comes up as expected (Medium): layers well over a base layer and fleece / under a shell if needed.

very impressed so far

Didn't really need this jacket. I have a Patagonia Nano Puff Hoodie which was my go to thinnish insulated jacket. The Alpkit Heiko feels more luxurious and plush. This may be to the larger panel sizes that allows more loft for the insulation and material. It definitely feels warmer than the Nano puff.
Only worn a few times so cant comment on the longevity of the panel stitching, that always seems to be the weak point on this type of jacket.

the who
Good no nonsense jacket.

warmish jacket which will fits nicely into most peoples outdoor
actives. apart from extreme cold conditions, this kind of jacket
will get plenty of use from early morning commute to work, to
your weekends away trips to the countryside.

love the jaffa colour too. only thing to note ! the boffins at alpkit
should do a hood version next time.

Great Jacket

This is a great jacket to throw into your backpack for those colder days. It's lightweight, packs down small and dries fairly quickly if you're caught out in the rain!!
Fits well with plenty of arm length to stop them riding up. Thin enough to work as a mid layer too, which works really well. Casual enough looking to pop down the pub or shops.
This jacket served me well on a recent trip on The Tour du Mont Blanc and therefore highly recommend it.

Ross Philpot
Great Jacket

Purchased this jacket from the Hathersage Store, went straight out climbing at Stanage in heavy snow and the jacket was superb. Kept me very warm whilst belaying and didn't restrict my movement whilst climbing.

Go to jacket!

I wanted a primaloft jacket without a hood and am so glad I bought this one. Really excellent quality - warm, light, keeps the wind off but seems very breathable. The best thing is that I never really feel that I have it on - it's so comfortable. Very reasonably priced and well worth every penny.

Frodsham Dad
Great jacket

Lightest, warmest jacket of this type at a price that is great. Well done Alpkit..

warm jacket for the price

Only worn a few times but already proved useful. Proved it is windproof in the British climate and plenty warm enough. In fact for the weight and thickness of the jacket it is very warm. The jacket is will made although there are a few loose threads which could be finished better. Overall a great jacket which will prove a good purchase.

Ian Wilson
Surprising cosy, lightweight and versatile.

I bought this about 4 months ago paying about £60 for it. I wanted something to use as warm layer during pauses when mountain biking and hill walking. It packs fairly small and bounces back when needed. Like others I have found myself reaching for it when I'm off down the pub or just taking a turn round the woods as well as when it's needed for expeditions.

It isn't super-warm, so anyone telling you they slept outside at Everest base camp wearing only this and a cashmere thong is prone to exaggeration. But it has the same feel as down in the way it instantly cuts heat loss whilst feeling light to wear.

It is also great if you need to break wind when you're on the hill. I've worn mine in about 40km/hr gusts and it's pretty impervious, cutting windchill substantially.

I haven't really tried its wet-warmth capabilities but, it being synthetic, I stress less about it than I would natural down.

Fast becoming a favourite jacket, then. So, why 4 stars not 5? Well, there was a fault, quickly fixed at a cost of £6 by Alpkit (but shouldn't have been necessary) and at the full asking price of £95 there's a lot of competition and personally I think that is starting to push the end of the value envelope.

My most used jacket!

I commute to work by bike wearing this jacket for a good 6 months a year, any time it's below 10C I reach for my Heiko. Surprisingly warm for a very thin jacket and has a lovely soft liner which feels great next to bare arms. The collar is nice and snug, stopping any wind getting in. My only complaint would be the outer fabric lets the insulation through, so after a few months use you have lots of tiny white tufts showing, also the zip pulls are too stiff and keep undoing and I've lost nearly all of them after 6 months use.



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