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2 for $120

72-Hour Merino Tee in Charcoal Heather

526 Reviews
$78

Color: Charcoal Heather

Size: Slim fit
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S
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XXL
3XL
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The highest performance merino tee on the market is also the softest

It's called the 72-Hour Merino Tee because it has the comfort, durability, and odor-resistance to last three days of nonstop wear. To put it to the test, every year Proof grabs their backpacks and takes off on another epic adventure wearing only one t-shirt all weekend long, making sure it still reigns supreme as the best travel tee out there. This time Ben and Alex headed to southern Utah and met up with Rashad and Ron Frazier, brothers and owners of guided adventure company Camp Yoshi. Led by adventure expert and filmmaker Sinuhe Xavier, they all roamed the desert for three days in their 72-Hour Merino Tees. Spoiler alert: the tees kicked ass—watch for yourself in our latest edition of the 72-Hour series below. Now the question is, where will you take yours?

Bundle and Save: 2 tees for $120


  • Premium tee with a stylish cut that combines comfort with technical performance
  • Engineered fabric harnesses the incredible natural properties of merino wool to wick moisture, resist odors, and regulate temperature
  • Nylon reinforcement allows the merino fabric to be machine washed while retaining its shape for easy care throughout the life of the garment
  • Made in Indonesia with 16.5 micron wool sourced from New Zealand
  • 87% 16.5 micron merino wool, 13% nylon
  • Temperature regulating
  • Odor-resistant
  • Moisture-wicking
  • Machine washable

Sourced from industry leader Global Merino, the specialized merino/nylon blend used in the 72-Hour Merino Tee is the cutting edge of technical fabrics that doesn’t sacrifice comfort for performance. It not only takes advantage of the amazing natural properties of wool, but strengthens them with nylon for a truly impressive fabric. Sustainably sourced from New Zealand farms (or as kiwis call ‘em, “stations”).

  • The 72-Hour Merino Tee has a slim fit through the chest and arms
  • If you are between sizes or prefer a more relaxed fit, we recommend sizing up
  • If you love the fit out of the box, we'd recommend a cold, gentle wash and air drying or swapping out for one size larger to account for standard shrinkage that comes with machine washing/drying a wool-based product
  • For the absolute best personal fit, compare your body measurements to the chart below

Body Measurements

XS S M L XL XXL 3XL
Chest 35 - 36 37 - 38 39 - 40 40½ - 42 42½ - 44 45 - 47 48 - 50
Garment Body Length 26¾ 27¼ 28 28¾ 29½ 30½ 31½
  • Machine wash cold
  • Tumble dry low or air dry to avoid any shrinkage
  • Do not bleach

Email us at [email protected] for sizing guidance or other questions.


“I wore this to Seattle and back and then up to Maine. Zero odor and still looked fresh.”

— Robert G. Verified Buyer

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