The world's most in-depth and scientific reviews of outdoor gear

Rab Borealis - Women's Review

This smart and ultralight softshell is extremely easy to move in and highly breathable - an excellent pick for the movement-minded adventure seeker.
Best Buy Award
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Price:  $115 List | $114.95 at MooseJaw
Compare prices at 2 resellers
Pros:  Very lightweight, excellent mobility, highly breathable, great fit, affordable.
Cons:  Not warm, only two pockets
Manufacturer:   Rab Equipment
By Penney Garrett ⋅ Senior Review Editor  ⋅  Nov 20, 2018
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77
OVERALL
SCORE


RANKED
#3 of 15
  • Weather Protection - 30% 4
  • Breathability - 30% 9
  • Mobility - 25% 10
  • Weight - 10% 10
  • Versatility - 5% 6

Our Verdict

The Rab Borealis is a well-tailored light shell that delivers top-notch mobility and breathability. It's geared toward climbers that need something packable and fitted, but anyone active and mobile outdoors will appreciate this layer. Weighing barely over half a pound yet still able to provide a decent barrier against the elements, the Borealis impressed us across the board. It isn't going to keep you warm in severely cold or wet conditions, but the slim fit is perfect for layering under other pieces. And while it isn't particularly feature-heavy, all your bases are covered for most situations. Overall, this is a fantastic softshell and one we think the majority of climbers will find highly useful. Even better? It will only set you back $115 — a steal for a technical layer — so we enthusiastically award it a Best Buy award.

If you need something with better weather protection, we suggest taking a look at our Editors' Choice for Cooler Temps, the Arc'teryx Gamma MX Hoody, a great softshell for colder weather activities. If you want to stay thin, light, and cheap but prefer an over-the-head design, be sure to read about the Outdoor Research Whirlwind Pullover, our Best Buy for a Pullover. And if you can throw a few more bucks at your jacket, the Arc'teryx Sigma SL Anorak Pullover, our Editors' Choice for Warmer Weather ran away with the highest overall score.


Compare to Similar Products

Our Analysis and Test Results

The Borealis is a well-conceived lightweight softshell that is ideal for anyone needing to keep weight and extraneous material to a minimum. This jacket earns a Best Buy award because it's so well suited to being high on a rock face even when your bank account balance is way down low.

Performance Comparison


We reached for this simple jacket time and time again for all kinds of activities and outings.
We reached for this simple jacket time and time again for all kinds of activities and outings.

Weather Protection


As much as we enjoy the Borealis, this isn't the category where it excels. This layer is unlined and very thin — ideal for many things, but not particularly warm.


It's decently wind resistant, and the material has a DWR-finish to help with water resistance. If you're engaging in an activity that keeps your heart rate up, you will be fine. But the moment those gusts get too intense, or it starts raining in earnest, you will be cold and wet. The fitted lines and minimalist weight of the Borealis make it ideal for layering under other things, but overall this is a better fit for mild weather.

The Borealis was sufficient when hiking to a glacier on a cold November day as long as we kept moving. But as soon as we stopped we definitely got cold.
The Borealis was sufficient when hiking to a glacier on a cold November day as long as we kept moving. But as soon as we stopped we definitely got cold.

Breathability


This category is where the Borealis is in its element. We found this to be one of the most breathable jackets in our review.



Constructed from a lightweight single-weave fabric, this is the lightest softshell that Rab offers. Nothing about this layer feels stifling or suffocating, even when the sweat is pouring. From runs on chilly mornings to sunny crag days to hoofing it up a mountain trail, you will enjoy excellent ventilation in this sweet little jacket.

Getting ready to sprint up some boulders in the breathable Borealis.
Getting ready to sprint up some boulders in the breathable Borealis.

Mobility


The Borealis achieves the perfect balance of being fitted without feeling constrictive. Jumping, running, climbing, and cartwheeling, all of it is easy and natural in this very mobile jacket. It has excellent stretch, and the well-executed slim cut means that there isn't excessive fabric bunching up or getting in the way of movement. It's a joy to wear when climbing, hiking, or playing.


The stretchy lycra-binding on the sleeve cuffs makes them easy to push up and have them stay in place. And the fitted hood goes under a helmet instead of over it, which also aids in unrestricted movement. Of course, it's a bit of a pain if you want to remove it as you have to take your helmet off to do so, but we like this design more when not wearing a helmet because it never needs to be fussed with or adjusted — it just always fits. Almost everything about this jacket feels like a second skin.

We could throw on the Borealis and forget about it while it became one with our every movement.
We could throw on the Borealis and forget about it while it became one with our every movement.

Weight


Weight? What weight? We think the Borealis may be made out of feathers. Our size medium weighed in at just 8.3 ounces, almost the lightest in our review by a wide margin.


While little-to-no weight means that weather protection isn't as robust, it's a fair tradeoff for the right activities. If you're up on a rock wall or climbing a 14'er, you will appreciate the ultra-lightness of this layer.

The featherweight and small pack size of the Borealis meant it was a great travel companion - especially to somewhere mild and windy like the Greek islands.
The featherweight and small pack size of the Borealis meant it was a great travel companion - especially to somewhere mild and windy like the Greek islands.

Versatility


We determined this metric by analyzing each jacket's features, style, durability, and ability to move between varied activities. The Borealis isn't a particularly feature-rich jacket, especially when stacked up against other models in our review, though the ones it does have are well-conceived. It's highly durable, attractive, and appropriate for many warm weather adventures.


This piece has two zippered hand pockets that are long and placed high enough to almost be considered chest pockets, making them easily accessible while wearing a harness. They are also mesh-lined to aid breathability. The lightweight single-weave fabric is wind resistant, DWR-treated, and UPF 50+. The drawcords on the hem are easy to use, and the fitted hood and chin guard provides great coverage around the face. The long slim fit is flattering and practical for all types of movement. Simple but smart, that's the Borealis.

The mesh-lined pockets  hem drawstrings  and harness-compatible pockets on the Borealis.
The mesh-lined pockets, hem drawstrings, and harness-compatible pockets on the Borealis.

Best Application


This shell is best suited for mild weather objectives where unimpeded movement and breathability are paramount. Rab says this softshell was inspired by the demands of big wall climbing, and we can see why. It's lightweight, well-fitting, easy to move in, and durable. Best of all? It's pretty darn cheap, perfect for the budget-minded outdoorswoman in need of an extra layer of protection.

The fitted hood of the Borealis nestled neatly below a helmet. This jacket is in its element on a rock face or hiking up a trail.
The fitted hood of the Borealis nestled neatly below a helmet. This jacket is in its element on a rock face or hiking up a trail.

Value


When you see a Best Buy award on one of our competitors, it always means that we think the value is high, and this baby is no different. High performance meets a friendly price tag on the Borealis, a true winner in our book.

Conclusion


The Borealis is a fantastically easy layer to fall in love with. It fits like a dream, has stellar mobility and breathability, barely registers on the scale, and won't break the bank. It's no wonder it warranted a Best Buy award, especially for climbers who need a mildly protective layer that won't weigh them down or get in the way. While it's not a champion in the weather protection department, we know this is an article of clothing that you will be happy to own for mild weather applications.

We can't decide what's prettier  the ocean or this jacket!
We can't decide what's prettier, the ocean or this jacket!


Penney Garrett