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Brynje Mesh Baselayer
I tested a Brynje-style mesh baselayer because the claims sounded almost ridiculous—lighter, warmer, and drier than a standard baselayer. In my lab and field testing it came out about 20% warmer than my closed-weave layer and, more importantly, it retained zero measurable sweat on my hike.
Buy on Geni
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Pros
- +About 20% warmer than the closed-weave layer in my freezer test
- +Retained no measurable sweat on my hike
- +Vents extremely well when you open your outer layer
Cons
- -The “4 to 6 times warmer” claim didn’t match my results
- -Works best as part of a proper layering system, not as a standalone solution
