Rank 18 of 40

Smartwool

Technical merino with ventilation knitted into the garment.

8.4/10

$55/pair

Updated August 2026

The verdict

Intraknit combines merino and TENCEL with mapped ventilation and very few chafe points. It manages temperature exceptionally well, but the technical knit is expensive and less rugged than simpler synthetic boxer briefs.

What works

Excellent temperature regulation
Integrated ventilation zones
Strong odor resistance

What doesn't

High price
Technical knit needs careful laundering

Specifications

Price per pair: ~$55
Founded: 1994
Country: USA
Best for: Hiking and hard efforts in changing weather
Materials: Merino wool, TENCEL Lyocell, nylon-polyester-elastane
Styles: Boxer brief, Long leg, Sport