Updated October 18, 2026. Prices checked October 18, 2026.
Two long-sleeve winter base layers fit between $60 and $100 with a US price and an independent review. The MAAP Thermal costs $100, the top of the range, and three independent reviews back it. Cyclingnews, road.cc and BikePerfect all rate its warmth and moisture handling, and it runs small. The Thermowave Xtreme is a merino blend at $81.64 on Amazon. It is soft, but only one independent review covers it, and Amazon shows different prices for different sizes and colors.
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: Independent reviews by Cyclingnews, road.cc and BikePerfect, manufacturer specifications and prices read on the MAAP US store and Amazon. We found only two tested base layers in this price range. 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. 5 source pages are linked under the 2 products so you can check each finding. How we score.
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Product
Best for
Breathability
Score
1
MAAP Thermal Base Layer LS Tee
Warmest winter base layer in this range
8
7.7
2
Thermowave Xtreme Merino Long Sleeve
Soft merino for cool rides and other sports
6.5
7.2
01
MAAP Thermal Base Layer LS Tee
Warmest winter base layer in this range, $100.00
7.7/10
Standout strength. Cyclingnews names it the best premium winter base layer, and BikePerfect picks it as the best lightweight long-sleeve.
Breathability 45%
8/10
Comfort and fit 25%
7.5/10
Odor control 15%
7/10
Durability 15%
7.5/10
Pros
Cyclingnews says the Polartec Power Grid fabric keeps you warm for a mid-weight piece, with a stretchy, fitted cut. road.cc rates it highly for warmth, comfort and moisture handling.
road.cc says the build feels durable. MAAP lists the fabric as quick drying and odor resistant, and the page shows 21 owner reviews.
Cons
road.cc says it runs small and short in the body, so it suits slimmer riders and bib shorts.
Cyclingnews and road.cc both call the price high. Cyclingnews tested the Thermal as a top-tier piece.
Soft merino for cool rides and other sports, $81.64
7.2/10
Breathability 45%
6.5/10
Comfort and fit 25%
8.5/10
Odor control 15%
8.5/10
Durability 15%
6/10
Pros
Cyclingnews names it the best winter multi-sport base layer and calls it seriously soft and snug, with no merino scratch. It works for running and walking too.
Amazon owners rate the round-neck version 4.4 out of 5, from 89 reviews.
Cons
Cyclingnews says some riders may want a closer cut.
Cyclingnews is the only independent review, and it gave no breathability or durability finding, so those scores are estimates. Amazon lists $57.15 to $81.64 depending on version, size and color, with no struck-through list price.
Readers in Germany, Canada, Spain, France, Italy, the Netherlands, Poland, the United Kingdom and Sweden are sent to their own Amazon store, where prices show in local currency. The prices on this page are US prices.
Rated by owners only
We could not find reliable independent tests for these products, so they have no score and no rank. We list one only when owners give it at least 4 stars out of 5 across at least 50 reviews. Owner reviews can be incentivized or unverified, so treat them as a weaker signal than the tests above.
Meriwool Merino 250 Long Sleeve$65.00. Rated 4.7 out of 5 from 4,411 reviews on Amazon.A 100% merino midweight top, not made for cycling in particular.
Smartwool Classic All-Season Merino Base Layer, Long Sleeve$100.00. Rated 4.5 out of 5 from 81 reviews on Amazon.A general outdoor merino top, not made for cycling in particular.
How we picked
Each score comes from independent reviews (Cyclingnews, road.cc and BikePerfect), manufacturer specifications and the price on the MAAP US store or Amazon. We do not test base layers in person. Ratings are our assessment of what the reviewers report. Merino scores high on odor, and where a review says nothing about durability we use a neutral estimate.
The MAAP has three independent reviews. The Thermowave has one, so its scores carry more doubt.
What we left out
Castelli Core Seamless ($90), Pro Mesh 2.0 ($75), Rapha Lightweight sleeveless ($85), Endura BaaBaa Blend ($90) and Specialized Seamless Light ($65): US prices read, no independent review found.
Spatz Basez Extreme: Cyclingnews and BikePerfect rate it, but its store showed euros and we found no US price.
Gorewear base layers: the brand closed its store.
What to look for
A fitted cut, and a larger size when a brand cuts small
Fleece-textured or merino fabric for cold mornings, and a mesh top for summer
A high neck if you ride in cold or wind
Questions
Why are only two products scored?
Other tops between $60 and $100 had a US price but no independent review we could read: Castelli Core Seamless and Pro Mesh, Rapha Lightweight sleeveless, Endura BaaBaa Blend and Q36.5. Van Rysel, Madison and Spatz are sold or priced outside the US. Two merino tops with strong owner ratings are listed after the scored products, with no score.
Why is the MAAP $100 in this ranking?
The mid-range band is $60 to $100, and a $100 product belongs to it. The top band starts above $100.
Where do the prices come from?
The MAAP price comes from the MAAP US store on October 18, 2026, and the Thermowave price from Amazon the same day. Sale prices are ignored.