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Just ask Mack Weldon if you're wondering how to get your underwear a bit smarter.

Just when you thought there wasn't much more that could make your underwear any better, Mack Weldon comes along and provides an innovative design with performance fabrics.

Hopefully you don't have the kind of day that necessitates performance fabrics in your underwear, but if you do then this pair is for you.

The underwear is made of Lenzing Modal® (made of 100% natural beech wood). It is anti-microbial, which means it prevents odor and manages moisture. They will keep you cool, dry, comfortable and in place all day long. The underwear is designed so the seams will stretch and recover where it counts and is touted as the most comfortable underwear on the market.