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The minimalist shell category is a crowded space. Everyone is chasing that holy grail: weather protection, breathability, and weight. In the Odin Infinity Minimalist Jacket, Helly Hansen has aimed directly at the alpine user who counts grams but refuses to be caught out in a mountain storm. As the lightest hardshell Helly Hansen has ever brought to market, it’s a bold statement piece for their premium Odin mountaineering line—the brand’s dedicated technical range for those operating in high-consequence environments. We have now featured several Odin products and always found them to be excellent for climbers, mountaineers and serious hikers. Designed with input from serious mountain professionals, they perform well in all mountain conditions.
The Construction
At its heart, this jacket utilizes the LIFA Infinity construction. It’s a 3.5-layer fabric, which means it has a sandwich style of fabrication – a face fabric, the lightweight and breathable LIFA Infinity membrane and a printed backing. For the weight-conscious alpinist, this translates to a shell that feels incredibly thin yet retains a surprising amount of structural integrity. It isn’t a “crinkle-bag” emergency layer; it has a technical hand-feel that suggests it can handle rock abrasion and wind-loading better than its 250g weight implies.
There are plenty of other excellent and well thought out features such as articulated arms, single handed hem cinch, half elasticated cuffs, a large zipped chest pocket and an internal mesh pocket (there are no hand pockets, who need them) – which doubles as the stow and the high quality YKK Aquacoil zips that have done a great job of keeping rain out. The external chest pocket was plenty big enough to stash phones, energy bars and a compact map and compass.
Performance on the Hill
Testing this jacket in the Lake District and Yorkshire hills provided the standard mix of driving wind and persistent rain. The standout feature is, predictably, the weight. It disappears into a 30L pack, leaving no excuse to leave it behind on a long, fast-paced day. It weighed in at 225g on the trusty CGR scales so is as light as it gets for a mountain shell. It did a great job of keeping rain out and when I deployed it it went on easily and kept me as dry as I could expect. The fabric was a little noisy in windy conditions due to the face fabric Helly Hansen is using on this jacket. It has been very waterproof and breathable, however and it’s a small price to pay.
The hood is genuinely helmet-compatible, with a stiffened brim that actually keeps water out of your eyes—a detail often overlooked in “minimalist” gear. It has the signature RECCO strip added to the peak, which can help rescue services find you. The articulation in the sleeves is well-judged, allowing for high reaches without the hem lifting excessively. However, because this is an ultra-minimalist design, you won’t find the features that define the heavier Odin 9 Worlds or similar expedition pieces. There are no pit zips, no oversized pockets, and no massive adjustment tabs. It is a tool for moving fast and light, not for extended belay sessions in a blizzard.
The Verdict
The Odin Infinity Minimalist feels like a deliberate pivot for Helly Hansen, moving away from “mountain lifestyle” and back toward pure technical utility. It’s a focused piece of equipment. If you are looking for a jacket with cavernous pockets and ventilation options, look elsewhere. But if your kit list is optimized for weight and you need a high-performance barrier that fits into the palm of your hand, this is a significant step forward for the brand.
It’s expensive, as expected from the top end of the Odin range, but it delivers on its promise: total protection without the bulk. For the alpinist, it’s a high-performance shell that justifies its place in the pack by rarely needing to come out, but providing absolute security when it does.
The Helly Hansen Odin Infinity Minimalist Jacket comes in sizes S-XXL and three colour options.
The SRP is £380 and it can be bought directly from Helly Hansen UK and specialist retailers.
Disclosure – CGR reviewers and writers are never paid to provide a review and the website does not take advertising or link to affiliate sales. We are a bunch of keen climbers and travellers who accept sample products and offer an honest and independent review of the item.
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