The Ridge Merino Inversion Heavyweight Crew Base Layer Shirt and Leggings are constructed for really chilly days. The bottom layers use a heavy-duty, 100% merino wool that prioritizes heat and odor resistance (And belief me, I actually examined the latter!) It is a true heavyweight set designed for cold-weather pursuits the place staying heat issues greater than shaving grams.
I examined the Inversion set over 3 weeks and roughly 10 days of use whereas downhill snowboarding at Aspen Highlands and Snowmass, uphill snowboarding, cross-country snowboarding close to Ashcroft and Spring Gulch, and path working within the Roaring Fork Valley of Colorado. Throughout a current chilly snap — together with a cross-country ski outing in -6 diploma Fahrenheit temperatures — the layers saved my physique doing simply advantageous — even when my face strongly disagreed.
In brief: The Ridge Merino Inversion Heavyweight Crew Shirt and Leggings ($110 every) ship wonderful heat, handle sweat successfully, and battle off odor prefer it’s their job. They’re comfy subsequent to pores and skin, match true to dimension, and versatile sufficient for snowboarding, working, and lengthy days exterior.
To see how these base layers stack up towards the competitors, take a look at our purchaser’s information to the Greatest Base Layers for Ladies.
Thermal class
Heavyweight
Professionals
- Unbelievable heat with none bulk
- Killer odor resistance for long-haul journeys
- Tremendous-soft towards your pores and skin
Cons
- Barely low dip on the again waistband

Ridge Merino Inversion Heavyweight Crew Shirt and Leggings Assessment
Ridge Merino isn’t attempting to be flashy, and that’s by design. Based in 2014 and primarily based in Mammoth Lakes, Calif., the model focuses virtually solely on merino wool attire constructed for individuals who play exterior. Ridge operates primarily as a direct-to-consumer (DTC) model, which helps maintain pricing extra cheap than a lot of its opponents.
As an alternative of chasing developments or seasonal gimmicks, Ridge Merino retains its lineup tight and useful, leaning into ethically sourced merino and simple designs meant to be worn arduous and washed sometimes (my form of social gathering!).
Heat That Exhibits Up When It’s Chilly


Ridge Merino calls the Inversion a heavyweight base layer, and the tech specs again it up. GSM (grams per sq. meter) refers back to the weight of the material, or how a lot wool is packed into every sq. meter. The larger the quantity, the heavier the bottom layer. At 270 GSM, the Ridge Merino Inversion set makes use of a noticeably thicker, denser knit, which interprets to higher warmth retention — on paper.
Excellent news: it really works in actual life, too. The heavyweight wool proved its price throughout a current chilly snap in Colorado’s Roaring Fork Valley, when daytime highs hovered close to zero and “seems like” temperatures dipped to -12 levels Fahrenheit.
Once I’m exterior in any such climate, I have a tendency to decide on a microgrid fleece base layer, however opted for the Inversion as an alternative to match. I wore the set whereas cross-country snowboarding close to Ashcroft, a historic ghost city exterior of Aspen.
Certain, it was chilly throughout slower sections once I stopped for photographs and even when the wind whipped by the valley. However for essentially the most half, the bottom layers did a implausible job of protecting my core and legs heat and cozy. (My face, then again, was not impressed.)
The heat additionally carried by a number of days of downhill snowboarding at Aspen Highlands and Snowmass, together with one hard-charging powder day in single-digit Fahrenheit temps. Lengthy elevate rides didn’t drain (an excessive amount of) warmth. As soon as I began snowboarding by the fluffy meadows, the layers regulated my physique warmth precisely how wool is meant to.
Sweaty however Not Smelly


Chilly temperatures don’t cease sweat, however they do make it extra annoying. Regardless of how chilly it’s exterior, path working is the one factor that sends my physique right into a heated, sweaty overdrive. Fortunately, the Ridge Merino Inversion set dealt with that higher than I anticipated.
On a morning path run close to my dwelling in Colorado’s Roaring Fork Valley, the temperature hovered round 2 levels Fahrenheit. Sure, motivation was low. However I had a brief break between work calls, and the canine was gazing me along with his lovely little face, so I noticed skipping wasn’t an possibility.
I overdressed, obtained sweaty (customary!), and braced myself for that clammy, post-run chill that by no means appears to give up. However, it by no means got here. The merino did precisely what you need it to do: moved moisture away from my pores and skin so sweat by no means pooled.
The actual shock got here afterward. I walked within the door and instantly jumped on a piece name, nonetheless carrying the highest as a result of that’s the fantastic thing about self-employment. Inside about quarter-hour, the material felt dry once more: no lingering dampness. That form of dry time issues while you’re recreating exterior in frigid temperatures.
Additionally, these layers slay relating to odor resistance. I haven’t washed this set as soon as within the 3 weeks I’ve owned it. Sure, that’s in all probability gross, however no, I positively don’t care. (All within the identify of testing, proper?)
That features downhill snowboarding three to 4 instances (a type of days involving arduous, sweaty powder snowboarding), two cross-country ski classes totaling roughly 3 hours, and two path runs for about 90 minutes of high-output effort. I’m even carrying the highest as I kind this. Someway, it nonetheless doesn’t scent. What a win.
A Match That Works


Bluntly, the bottom layers crush relating to match; particularly the highest. I’m 5’5” and 145 kilos and examined a medium. The arms work for my barely longer-than-average arms, and the thumb holes are literally comfy, which doesn’t typically occur for me. (Often, they’re mere ornament that sits someplace round my wrist bone.) The 18.5M wool is fairly advantageous, which implies it’s uber delicate towards your pores and skin.
Ridge Merino makes use of a raglan sleeve development right here, which means the seams run from the underarm to the collar as an alternative of sitting immediately on prime of the shoulder. In apply, that interprets to fewer strain factors below a pack. I wore a backpack on two outings — certainly one of them pretty heavy after carrying a good friend’s additional layers — and by no means observed any seam-related sizzling spots or rubbing.
The longer prime coated my bottom even when bending over, stayed put whereas transferring, and tucked in simply once I wished it to. It additionally appears to be like ok to put on off the path; I’ve thrown it on with denims for varsity pickup greater than as soon as, and it doesn’t scream “base layer.”
The leggings are comfy general, with a full-length reduce and a looser ankle hem that makes them simpler to drag up and over calves when carrying ski boots and socks. Whereas full-length leggings aren’t my private favourite for ski boots, the forgiving ankle opening made them far much less annoying than ordinary.
The waistband is thinner and fewer structured than another merino base layers. It isn’t essentially the most flattering and does create a slight abdomen bulge; particularly noticeable if you happen to’re a mother with a C-section scar like me. However that’s all aesthetics as a result of it actually wasn’t uncomfortable within the slightest.
For girls with wider hips and stronger glutes, it’s price noting that the again waistband dips barely. I observed this most when squatting or bending over. Whereas it by no means truly uncovered something, I did consistently really feel like I wanted to verify to verify issues weren’t … hanging out.


Closing Ideas
The Ridge Merino Inversion Heavyweight Crew and Leggings ship precisely what they promise: severe heat, moisture administration, and standout stench resistance for cold-weather adventures. They’ve earned a everlasting spot in my winter rotation, particularly for brutally chilly days when lighter layers simply received’t reduce it.
For those who’re in search of a heavyweight merino base layer that performs throughout snowboarding, working, and lengthy days exterior, this set is a winner — particularly if you happen to don’t like washing your garments.
