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GTO NS DermaSensor Baselayer - Men's

5 out of 5 stars
1 Review


Size Chart


Why We Like The Assos GTO NS DermaSensor Baselayer

The GTO NS DermaSensor Baselayer uses a 3D jacquard warp-knit design to pull moisture away from our skin and dry in a flash while we're flying downhill or making another burly climb.


  • Performance tank for optimal moisture control on the bike
  • 3D mesh construction pulls moisture away and dries quickly
  • Layers wonderfully under your staple kit in the cooler temps
  • Item #AASZ060
45% nylon, 43% polyester, 12% elastane
Insulation Weight
Manufacturer Warranty
2 years

Overall Rating

5 based on 1 ratings

Review Summary

1 Stars - 0 reviews
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5 Stars - 1 reviews

Fits True To Size

Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.
Runs smallTrue to sizeRuns large

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5 out of 5 stars

June 16, 2024

It Actually Works

I've put it through the wringer

Finally, a summer base layer that actually works! This product is absurdly expensive, but it does what a summer base layer is supposed to do, it works like a radiator on a (gas powered) car. Meaning, it keeps you cooler on hot climbs by pulling the moisture away from your body and providing evaporative cooling, and dries extremely fast to provide insulation (warmth) on descents. I live in CO and these attributes are very important. I've always bought into the Assos layering system and tried many versions of their base layers for summer rides. This is the first and only product that actually does what the Assos layering system advertises. The theory is great but if the materials don't actually provide the cooling and insulation, it's just a way to be overheated climbing and cold descending. I use this product on every ride, even in the winter. For fit, go with smaller, it's a very stretchy material, to get the next to skin fit.

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Originally reviewed on