Our bestselling 72-Hour collection is crafted from a New Zealand merino wool that’s infused with nylon to ensure it never shrinks in the washing machine. The ultimate boxer briefs in our arsenal, these are perfect for adventures that call for packing light and staying comfortable. Even after 72+ hours of constant wear, they won't stink up your suitcase thanks to the naturally odor-resistant and moisture-wicking properties of merino wool.
All measurements are in inches.
The team at Proof created a collection of performance wear that can be worn for 72 hours straight without showing any signs of wear—or, you know, odor. The 72-Hour collection is built from the softest and strongest merino wool on the planet. To back up that claim, we packed a merino wool tee from the collection as our only shirt on demanding excursions around the world—from Iceland and the Swiss Alps, to Mexico City and even our own backyards. Turns out, this temperature-regulating layer isn’t just for travel, it’s also our all-time bestselling shirt for everyday wear.