Skip to content
Wild10

Top 10 · Compare

Compare Best Long Underwear head to head

Pick any two picks from this list and see specs, current price, pros, cons and reader ratings side by side.

Back to the full Top 10
Kancamagus Midweight

#9 on this list

Kancamagus Midweight

Minus33

New Hampshire Merino at half the price of the imports, with the same 18.5-micron feel.

Price
Check current price
Reader rating
No reader votes yet
How we assessed it
Specification researched
Vapor Grid Crew

#10 on this list

Vapor Grid Crew

Duckworth

Montana wool grid, US-milled end to end. The best hybrid layer for high-output winter days.

Price
Check current price
Reader rating
No reader votes yet
How we assessed it
Specification researched

Specs side by side

Kancamagus Midweight versus Vapor Grid Crew specifications
SpecKancamagus MidweightVapor Grid Crew
Material100% Merino WoolMerino Wool Blend
WeightMidweight (230 GSM)
SeamsFlatlock
OriginDesigned in USAMade in USA
Micron Count18.5
Fabric WeightLight-Midweight
Best ForHigh-Output Winter Activities
FitAthletic

What our reviewers liked and didn't

Kancamagus Midweight

  • Excellent warmth-to-weight ratio for a midweight merino
  • Superior odor resistance, ideal for multi-day trips
  • Soft 18.5-micron merino wool for next-to-skin comfort
  • Breathable and effective at moisture management
  • Exceptional value compared to premium merino brands
  • Dries slower than synthetic alternatives
  • Durability, while good for merino, isn't as high as some synthetics
  • Limited color and style options

Vapor Grid Crew

  • Excellent warmth-to-weight ratio for active use
  • Superior breathability and moisture management
  • Comfortable next-to-skin feel
  • Naturally odor resistant
  • Enhanced durability due to merino-synthetic blend
  • Proudly made in the USA with Montana wool
  • Higher price point than many synthetic alternatives
  • Not the absolute warmest for static, extreme cold
  • Slightly heavier and bulkier than ultralight options

Prices change constantly — the figure shown is the last verified catalog price, and the buy buttons always go to the current listing.