Updated October 26, 2026. Prices checked October 26, 2026.
Five long-sleeve tops cost $75 to $95. Outside tested the Rab Syncrino for skiing and ski touring, and GearJunkie's skier tested the Patagonia Capilene Lightweight and the Ridge Merino Aspect, so those three have the best evidence for skiing. The Capilene Midweight has the most tests behind it, and the REI Co-op Merino 185 is the cheapest merino. The Syncrino is built for hard effort and is too thin to wear alone in the cold.
How these scores are built. Base layers are judged mainly on breathability, which counts for 45% of the score. Comfort and fit counts 25%, and the other two criteria count 15% each. Based on: Outside's test of 42 base layers for skiing (2026), GearJunkie's test with a skier (May 2026), OutdoorGearLab (April 2026), CleverHiker and Switchback Travel for the tops copied from our hiking ranking, and prices read on REI and the Rab and Ridge Merino sites in October 2026. Breathability comes from OutdoorGearLab's and GearJunkie's breathability scores where they cover the product, and from our estimate where no test scores it. We do not test products in person. 10 source pages are linked under the 5 products so you can check each finding. How we score.
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Product
Best for
Breathability
Score
1
Patagonia Capilene Lightweight Crew
Best synthetic, tested by a skier
9
8.1
2
Rab Syncrino Base LS Tee
Best for hard effort, tested for ski touring
8
8
3
Patagonia Capilene Midweight Crew
Best wicking, copied from hiking
8
7.5
4
Ridge Merino Aspect Midweight Crew
Best-value merino, tested by a skier
7
7.1
5
REI Co-op Merino 185 Long-Sleeve Crew
Cheapest REI merino
7
6.9
01
Patagonia Capilene Lightweight Crew
Best synthetic, tested by a skier, $75.00
8.1/10
Breathability 45%
9/10
Comfort and fit 25%
8.5/10
Odor control 15%
6.5/10
Durability 15%
6.5/10
Pros
GearJunkie (9.1 out of 10, the highest score in its test) rates warmth 8, breathability 8 and comfort 9. A diamond-grid interior traps heat, and a HeiQ Mint treatment keeps the usual synthetic odor down.
GearJunkie's tester skied in it around Idaho, and it costs less than most merino tops.
Cons
GearJunkie says the layers pill with use and rates durability 7 out of 10. As a synthetic it holds more odor than wool.
GearJunkie is the only independent test we read, and REI shows no owner reviews for the Lightweight.
Best for hard effort, tested for ski touring, $90.00
8/10
Breathability 45%
8/10
Comfort and fit 25%
9/10
Odor control 15%
7/10
Durability 15%
7/10
Pros
Outside names it its Best Base Layer Top for Backcountry Touring after ten days of skiing in the Japanese Alps and at Mt. Ashland and Crater Lake. It dried fast, packed to the size of a tangerine and stayed fresh after sweaty sessions.
The Syncrino 125 fabric blends merino wool with polyester for strength, and Rab's US site shows 41 reviews.
Cons
Outside says it is too lightweight to wear alone in the winter months. Outside printed $85, and the Rab US site lists $90.
Outside is the only independent test we read, and Live For The Outdoors has no review of it.
CleverHiker (4.5 of 5), OutdoorGearLab (75), Switchback Travel (best synthetic) and GearJunkie (8.1 of 10, best synthetic for high output) all list it. CleverHiker says it wicks best of the synthetics it tested.
It dries fast, has an odor treatment, and OutdoorGearLab praises its shoulder range of motion.
Cons
CleverHiker and Switchback Travel say it is less odor resistant than wool, and Switchback Travel finds it less soft with limited stretch.
OutdoorGearLab found inset seams and no thumb loops or front zip. REI shows no owner reviews for it yet.
GearJunkie (8.2 out of 10) says a skier found performance close to high-end merino blends at a fraction of the cost, with excellent durability and warmth, and rates comfort 9. Its 3/4 bottoms suit ski boots.
Switchback Travel names the quarter-zip version its best budget merino, and Ridge shows 152 owner reviews for the crew.
Cons
Better Trail says it can overheat during hard efforts. OutdoorGearLab (71) found durability issues and loss of shape after washes on the hooded version.
The Ridge site showed our browser euros. The creator read $80 in a US view on October 17, 2026, and Better Trail lists $80 too.
Each score comes from independent tests (Outside, GearJunkie, OutdoorGearLab, CleverHiker and Switchback Travel), manufacturer specifications and the price on a retailer or brand page. Tops tested by a skier come first: the Syncrino, the Capilene Lightweight and the Ridge Aspect. The other two were chosen by calculated score from our hiking ranking. We do not test tops in person. Ratings are our assessment of what the reviewers report. Where a test says nothing about odor, we use the general finding for the fabric: synthetics score low and merino scores high.
The Capilene Midweight has four independent tests. The Syncrino and the Capilene Lightweight have one each, so their scores carry more doubt.
What we left out
Flylow Hanmer Wool Baselayer Top ($80 in Outside): the product page returns an error.
Smartwool Classic All-Season ($100), Arc’teryx Rho LT Crew ($100): in the premium ranking.
REI Co-op Midweight Half-Zip ($69.95) and Midweight Crew ($64.95): they scored below the five here.
Stio Basis PeakWool and The North Face Summit Series Pro 120: tested by GearJunkie, but we read no US retailer price.
What to look for
Fabric: merino smells less on a multi-day trip, and synthetic dries faster
A half zip or a high collar if you want to vent on climbs
A midweight top for cold mornings, and a lightweight one if you run warm
Questions
Why is the Flylow Hanmer not here?
Outside names it its Most Versatile Top at $80, but Flylow's product page now returns an error, and the address points to a 2024 model, so we could not confirm that the tested top is still sold.
Why is the Rab price $90 here and $85 in Outside?
Outside printed $85. The Rab US site lists $90.00 on October 26, 2026, and we use the price on the brand page.
Why is the Smartwool Classic All-Season not here?
It costs $100, and our hiking ranking puts $100 in the premium band, so it is in the premium ranking.
Why are hiking tops in a ski ranking?
The Capilene Midweight and the Merino 185 have no test by a skier, but they had a price we could read and independent tests. We copied them from our hiking ranking, and the page says which ones.
Where do the prices come from?
The regular price on REI and on the Rab site on October 26, 2026, and the Ridge price the creator read in a US view on October 17. Sale and outlet prices are ignored.