We've just reviewed the excellent Arc'teryx Incendo Hoody lightweight running jacket, but what if you want something better suited to cold weather mountain running? The answer could be the brand's Trino 'mountain training jacket'.
We got one in for our trail running round-up, it simply hasn't been cold enough to use it yet, so you'll have to wait for a full review.
What we can tell you already is that it's a sleekly cut, slickly designed top that should work for cycling as well as trail running. At a real-life 410g for a medium-sized Trino, it's very definitely a jacket that you'll be wearing all run rather than stashing away in a bum-bag or pack.
The jacket's main fabric is Gore's completely windproof and highly water-resistant Windstopper, but in a tacit acknowledgement that runners run hot and needed added breathability, there are strategic panels of an air-permeable stretch fabric called Atreus.
The front of the jacket is completely windproof as are the shoulders and outer sleeves, but the central back panel, insides of the arms and rear of the collar use the more breathable stuff.
The idea is that you get decent weather protection where you need it, but enough breathability to shed heat as you run.
The fabric also gets a DWR - water resistant - treatment to help deal with light showers and snow, this is a deep winter running jacket after all.
Trino Jacket: The Fine Details
As ever, Arc'teryx has put a lot of thought into the nips and tucks of the jacket. Unusually for a running shell, it has two zipped hand-warmer pockets up front complete with super soft linings.
The cuffs are a neat, semi-elasticated design with a longer section over the back of the hand and there's a neat, small soft chin-protection over the top of the main zip.
Where things get really clever is out back. There's a single wide pouch-type pocket with access from either side via slanted openings plus a media pocket. It's a bit like a cycling jersey set-up but without the open tops, which should make the pocket more secure in use.
Also interesting is that the pocket bag doubles as an adjustable, floating, shock-corded hem, so when you tighten up the bottom of the jacket, you also pull the pocket in towards your body.
The pockets are super easy to access and should be ideal for stashing food, gloves, hat and so on. And because they sit quite low, you should also be able to team the jacket with a high-sitting running pack like the Osprey Rev 1.5 or Nathan Sports Fireball and still be able to get into the pockets.
Definitely a deep winter running jacket rather than an autumnal one, which is why we're waiting for things to get properly cold before a full-on review. What we can tell you is that the Trino seems neatly designed and cut using top quality components and construction.
At £160 it's not a cheap buy, but if you're serious about your winter running, it may still be a good call. On top of that, the cut, design and pockets should also work well on a bike, making it a versatile choice. We'll let you know how we get on just as soon as winter arrives.