Asger-HS Polartec® Alpha™ Jacket

Light water and wind resistant mild insulatiion ; perfect for the
task.

Five years ago I bought the hooded version of the Asger and I was instantly impressed by its low weight, its insulation quality and how it trasmits moisture to the outside of the garment, leaving the inside completely dry. The only negative for me was that in windy conditions, the lightweight hood would blow around and wrap itself around my neck so I wrote to Jottnar suggesting they consider making a version without the hood. I guess I wasn't the only person to do so and I am delighted Jottnar brought out the Asger hoodless jacket which is now my three season 'go to' throw on when I stop and need some instant warmth and wind protection.
Can't recommend this item highly enough

I’ve two. Superb warmth for the weight particularly for high output activities like ski touring. The cut seems to have changed for 2026 to the extent that I think I’m going to need to size down from L to M. The outer shell has changed somewhat too - probably a bit more robust but I liked the soft feel of the old one more.

The jacket is that good for days on the hills I can’t recommend enough. Temperature regulation is no problem when using this garment, this is my second purchase of the Asger and I’m never out of it.

Perfect jacket for hard work in autumn and spring, and great for layering in winter. Keeps the wind out and dries so quickly. I really like that this version has no hood.

I have 2 of these jackets and they are brilliant. Far superior to my Arcteryx items.

Big fan of Jottnar products but some consistency in sizes across the range would be much appreciated. Jacket fits very small and I had to go a size up, could’ve even gone up two sizes dependant on whether using as mid layer or pull on sweater. Not used in the wild yet where I hope brand quality will prevail but it does seem very flimsy and not worth the premium paid compared to their other products I have purchased

I am lucky enough to have a selection of Jottnar’s great gear, love it all! The Asger is such a versatile item, and has been my go to mid and top layer for the last 18 months. I bought two when I could! I recently bought the Asger HS in the same size (M) but found the fit quite a bit smaller than the hooded version, so had to go up a size. The fit isn’t as good for me, but there again, I’m not built like a Royal … It’s well made, light, packable and just as warm. Shame the sizing has changed, otherwise it would be a five star. Don’t be put off, just try it and get the size that fits, you won’t regret it. Customer service is fantastic too.

A great product, great quality and very lightweight, good to go in your rucksack when you don’t need it right away.
I did initially go for a medium but ended up sending back for a large, no hassle, and large is a good fit, not too snug but not too big.
Definitely recommend this jacket.

It’s exactly as described, but next time I’ll go a size up as it is a very snug fit.

The Asger HS is a great bit of kit, it’s really lightweight but very warm, it’s so light you hardly notice it in your pack until you need it. It works great as either a mid layer or an outer layer if it’s not raining, it also looks good so you can wear it for casual use too.
A word of caution on sizing though, I’m average build and between a medium and a large, I ordered the large and it came up very small and fitted tighter than anything I own which is medium. I exchanged it for the extra large which fits but only just.

Just the perfect jacket to wear over a t-shirt that keeps you at a comfortable temperature on cooler days. Or to wear with an over jacket on cold days. I find it’s a great jacket to play golf in. Loads of movement and doesn’t restrict the swing. Would highly recommend!

Brilliant jacket but just missed the offer that ye get a free hat worth £39 when you purchase one of the jackets other than that brilliant jacket👍👍👍👍

Amazing quality - light weight and very warm. Love it!!!!!

I bought one a few years ago and wear it a lot but still looks almost new. It’s truly a great jacket for cooler days in the spring/summer or for layering on a ski day. Bought a second one in a different colour and am so glad Jottnar decided to relaunch it. I’m 173cm and 72kg and the S is about as perfect a fit as you can get. Snug but moves well and doesn’t restrict movement. Really a perfect jacket and worth every penny. 😍

10/10 Jacket. Having the previous edition with the hood and seems on the outside I can’t say enough good things about this jacket. Glad they switched the an abrasion resistance smooth outside on the jacket, this will be a game changer for rocks/bushes. I have used mine in many conditions, negative 5 cutting trees and it worked brilliant. 5 degrees, absolutely piss wrapped and 45mph winds and this pretty much saved me. Highly highly recommend.

Great lightweight jacket, flexible, warm and super compact to chuck in a bag.

This is quickly becoming my favourite purchase from Jottnar due to the combination of lightweight design but superb windproof quality - the lined pockets are especially appreciated. Shower proof and quick drying it also looks very stylish. The arms are slightly long for me but this is a minor issue and does not stop me giving it a 5 star rating.

Great fit!
Really comfortable, looking forward to using it other jackets doing TMB in June 🏔️🌎

First worn on an incredible harsh wintery day in the Mourne Mountains, which aren't the most arduous. The weather was 25+km wind, -3 to -7 temperature (with wind chill), snow flurries being blown around with variety of sleet to rain, but this magical jacket kept me incredibly warm throughout. My first jacket I've purchase without a hood and I am thankful for it as I rarely put the hood up. The fluffy fleece polartec Alpha lining is where the magic is hidden with the rest of the jacket remaining lightweight, stylish, comfortable and ahead of the game.

My second Jottnar purchase and again very impressed with the product. Light but very warm when layered properly and affords great protection from wind chill and also shower burst, dries quickly

The warmth to weight ratio is unbelievable. This looks like an able replacement to my trusty Elvar, which I’ve had for years and years. I went up a size from my usual L, as I’d tried one previous and found it tight across my back / chest. I’m 95kg , 46” chest, 34” waist. The XL fits great if I pull the waist in a bit. Arms a wee bit long but no issue really. Another great product, very warm for its size. Top job guys.

Love the pared down simplicity that gives this a remarkable warmth and wind proofing for the weight. The combination of Polartec Alpha and rip stop shell is excellent. Stretchy cuffs, burly zip and decent sized pockets are well judged.
On me sizing is fine. I’m either Jottnar small or medium depending on desired fit. In this, small gives generous body and arm length, but not excessive. Even over just a base layer, chest is a snug but ok fit. Medium might be better for more layers and/ or mobility, but I suspect it would be over long on body and arms, as others describe.
Reminiscent of Marmot’s Windshirt of old, and sort-of like a lightweight Buffalo shirt - this IMO is better and more useful than either. Praise indeed. I’d buy a smock/ Buffalo shirt version. Also the hooded version but Jottnar, it seems hoods not always your strong suite (Dan Bailey review)? A minor redesign for next season and put me on the waiting list please.
Not for climbing thrutchy chimney routes or bar room brawls, but strong enough for sensible applications, which are many.

This is one of those occasions where I was gutted to return an item. The sleeves on this jacket are really long, but frustratingly so as the rest of the jacket fit me so well. To add salt to the wounds this is one of the nicer hiking jackets I've ever out on. Felt great, brilliant cut (sleeves aside) and looks so stylish. If you have linger arms then this is a great buy, but not for me unfortunately.

Genuinely impressed with how well this performs in a wide range of conditions. I put it through its paces hiking, climbing and mountaineering for a few months throughout shoulder seasons. It's comfortably shrugged off spitting rain and wind, and more importantly breathe naturally when the gradients start to bite.

Every last detail is well thought through and sometimes I forget it's there as it's not getting in the way but rather let me focus on doing my thing.

Very, very good quality fleece jacket. I bought a medium. I'm 5ft 10 inches, 80 kg, waist 34.. Very good fit apart from the very long sleeves. I bought a small and medium to try on and sent the small size back. I haven't got short arms but even the small size version the sleeves are a touch long. I kept the medium though as even with the longish sleeves the jacket is a winner.

This jacket is perfect for spring, when in warm sun but biting winds - does the job nicely. Have worn it on the move over just a base layer and been fine, even reached for it when it chillled down in the evening and it did the job nicely and isn't bulky! I only wish there was an internal or a chest pocket.

Excellent quality, hoping it lasts me!

Superb design,extremely light, wind proof and warm.The quality and build is without question .
Do not hesitate, this equipment is top of the shop and whilst it’s not the cheapest it’s simply the best you may get without paying ridiculous prices
Only issue I have is if the return cost is not covered if you need a different size, this needs to be freepost as there are no stockist to return to , this is the only reason I haven’t given a 5 stars

I’ve been tempted to try Jottnar products for quite a while now so decided to take the plunge. Wow! I wish I had decided much earlier. The ASGER HS fleece jacket is just fantastic as an outer layer for those chilly early spring days. It is totally wind proof, unbelievably lightweight and the quality of manufacture is fantastic. The fit is also perfect. I can’t really say anymore about this product as the quality speaks for itself. I can’t wait for my next purchase which will be a Jottnar hard shell waterproof jacket. Quite expensive but you get what you pay for. Keep up the good work Jottnar.