© Huckberry 2022

72-Hour Merino

The team at Proof created a performance tee that can be worn for 72 hours straight without showing any signs of wear—or, you know, odor. The 72-Hour Tee is built from the softest and strongest merino wool on the planet. To back up that claim, we’ve packed it 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 tee isn’t just for travel, it’s also our all-time bestselling tee for everyday wear.

72-Hour Merino Ultralight Hoodie

Proof72-Hour Merino Ultralight Hoodie

$138
72-Hour Merino Long Sleeve Polo

Proof72-Hour Merino Long Sleeve Polo

$118
72-Hour Merino Ultralight Hoodie

Proof72-Hour Merino Ultralight Hoodie

$138
72-Hour Merino Pocket Tee

Proof72-Hour Merino Pocket Tee

$78
72-Hour Merino Pocket Tee

Proof72-Hour Merino Pocket Tee

$78
72-Hour Merino Pocket Tee

Proof72-Hour Merino Pocket Tee

$78
72-Hour Merino Pocket Tee

Proof72-Hour Merino Pocket Tee

$78
  • Bestseller
72-Hour Merino Tee

Proof72-Hour Merino Tee

$78
72 Hour Merino Tee Outside Quote
  • Bestseller
72-Hour Merino Tee

Proof72-Hour Merino Tee

$78
72-Hour Merino Tee

Proof72-Hour Merino Tee

$78
  • Bestseller
72-Hour Merino SS Henley

Proof72-Hour Merino SS Henley

$88
  • Bestseller
72-Hour Merino SS Henley

Proof72-Hour Merino SS Henley

$88
  • Bestseller
72-Hour Merino SS Henley

Proof72-Hour Merino SS Henley

$88
72-Hour Merino Polo

Proof72-Hour Merino Polo

$88
  • Bestseller
72-Hour Merino Polo

Proof72-Hour Merino Polo

$88
  • Bestseller
72-Hour Merino Polo

Proof72-Hour Merino Polo

$88
72-Hour Merino Ultralight Hoodie

Proof72-Hour Merino Ultralight Hoodie

$138
72-Hour Merino Ultralight Quarter Zip

Proof72-Hour Merino Ultralight Quarter Zip

$138
72-Hour Merino Ultralight Quarter Zip

Proof72-Hour Merino Ultralight Quarter Zip

$138
72-Hour Merino Ultralight Quarter Zip

Proof72-Hour Merino Ultralight Quarter Zip

$138
72-Hour Merino LS Polo

Proof72-Hour Merino LS Polo

$118
72-Hour Merino Ultralight Hoodie

Proof72-Hour Merino Ultralight Hoodie

$138
72-Hour Merino Long Sleeve Polo

Proof72-Hour Merino Long Sleeve Polo

$118
72-Hour Merino Ultralight Hoodie

Proof72-Hour Merino Ultralight Hoodie

$138
72-Hour Merino Pocket Tee

Proof72-Hour Merino Pocket Tee

$78
72-Hour Merino Pocket Tee

Proof72-Hour Merino Pocket Tee

$78
72-Hour Merino Pocket Tee

Proof72-Hour Merino Pocket Tee

$78
72-Hour Merino Pocket Tee

Proof72-Hour Merino Pocket Tee

$78
  • Bestseller
72-Hour Merino Tee

Proof72-Hour Merino Tee

$78
72 Hour Merino Tee Outside Quote
  • Bestseller
72-Hour Merino Tee

Proof72-Hour Merino Tee

$78
72-Hour Merino Tee

Proof72-Hour Merino Tee

$78
  • Bestseller
72-Hour Merino SS Henley

Proof72-Hour Merino SS Henley

$88
  • Bestseller
72-Hour Merino SS Henley

Proof72-Hour Merino SS Henley

$88
  • Bestseller
72-Hour Merino SS Henley

Proof72-Hour Merino SS Henley

$88
72-Hour Merino Polo

Proof72-Hour Merino Polo

$88
  • Bestseller
72-Hour Merino Polo

Proof72-Hour Merino Polo

$88
  • Bestseller
72-Hour Merino Polo

Proof72-Hour Merino Polo

$88
72-Hour Merino Ultralight Hoodie

Proof72-Hour Merino Ultralight Hoodie

$138
72-Hour Merino Ultralight Quarter Zip

Proof72-Hour Merino Ultralight Quarter Zip

$138
72-Hour Merino Ultralight Quarter Zip

Proof72-Hour Merino Ultralight Quarter Zip

$138
72-Hour Merino Ultralight Quarter Zip

Proof72-Hour Merino Ultralight Quarter Zip

$138
72-Hour Merino LS Polo

Proof72-Hour Merino LS Polo

$118
  • Bestseller
72-Hour Merino Tee

Proof72-Hour Merino Tee

$78
72 Hour Merino Tee The Discoverer Quote
  • Bestseller
72-Hour Merino Tee

Proof72-Hour Merino Tee

$78
  • Bestseller
72-Hour Merino Tee

Proof72-Hour Merino Tee

$78
72-Hour Merino Tee

Proof72-Hour Merino Tee

$78
  • Bestseller
72-Hour Merino Tee

Proof72-Hour Merino Tee

$78
  • Bestseller
72-Hour Merino Tee

Proof72-Hour Merino Tee

$78
72-Hour Merino Tee

Proof72-Hour Merino Tee

$78
  • Bestseller
72-Hour Merino Tee

Proof72-Hour Merino Tee

$78
72 Hour Tee Bestseller Page
  • Bestseller
72-Hour Merino Tee

Proof72-Hour Merino Tee

$78
  • Bestseller
72-Hour Merino Tee

Proof72-Hour Merino Tee

$78
72-Hour Merino Tee

Proof72-Hour Merino Tee

$78
72-Hour Merino Tee

Proof72-Hour Merino Tee

$78
  • Bestseller
72-Hour Merino Tee

Proof72-Hour Merino Tee

$78
72-Hour Merino Tee

Proof72-Hour Merino Tee

$78
  • Bestseller
72-Hour Merino Tee

Proof72-Hour Merino Tee

$78
  • Bestseller
72-Hour Merino Polo

Proof72-Hour Merino Polo

$88
  • Bestseller
72-Hour Merino Polo

Proof72-Hour Merino Polo

$88
  • Bestseller
72-Hour Merino Polo

Proof72-Hour Merino Polo

$88
  • Bestseller
72-Hour Merino Tee

Proof72-Hour Merino Tee

$78
72 Hour Merino Tee The Discoverer Quote
  • Bestseller
72-Hour Merino Tee

Proof72-Hour Merino Tee

$78
  • Bestseller
72-Hour Merino Tee

Proof72-Hour Merino Tee

$78
72-Hour Merino Tee

Proof72-Hour Merino Tee

$78
  • Bestseller
72-Hour Merino Tee

Proof72-Hour Merino Tee

$78
  • Bestseller
72-Hour Merino Tee

Proof72-Hour Merino Tee

$78
72-Hour Merino Tee

Proof72-Hour Merino Tee

$78
  • Bestseller
72-Hour Merino Tee

Proof72-Hour Merino Tee

$78
72 Hour Tee Bestseller Page
  • Bestseller
72-Hour Merino Tee

Proof72-Hour Merino Tee

$78
  • Bestseller
72-Hour Merino Tee

Proof72-Hour Merino Tee

$78
72-Hour Merino Tee

Proof72-Hour Merino Tee

$78
72-Hour Merino Tee

Proof72-Hour Merino Tee

$78
  • Bestseller
72-Hour Merino Tee

Proof72-Hour Merino Tee

$78
72-Hour Merino Tee

Proof72-Hour Merino Tee

$78
  • Bestseller
72-Hour Merino Tee

Proof72-Hour Merino Tee

$78
  • Bestseller
72-Hour Merino Polo

Proof72-Hour Merino Polo

$88
  • Bestseller
72-Hour Merino Polo

Proof72-Hour Merino Polo

$88
  • Bestseller
72-Hour Merino Polo

Proof72-Hour Merino Polo

$88