Proof 72-Hour Merino Air T-Shirt

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The original 72-Hour Merino Tee from Proof is an icon. For any brand to have the audacity to advertise a t-shirt with the idea of wearing it for three days in a row is a bit absurd, but that garment lived up to the billing and then some. Check out our review of the original here.

Proof 72-Hour Merino Air T-Shirt Umber

Trying to follow up this incredible shirt with another worthy of the 72-hour billing is a tall task. Fortunately, Proof didn’t mess too much with a winning formula. The 72-Hour Merino Air is true to its roots as a moisture-wicking, anti-odor masterpiece.

Proof 72-Hour Merino Air T-Shirt Stone Black

What you’ll notice as the primary difference between these two versions is the lighter, more flexible mesh knit used on the merino wool. The “Air” shirt provides you with more stretch as you are engaging in your favorite activities, but sacrifices absolutely nothing in terms of comfort or durability. 

The original 72-Hour Merino Tee remains an excellent choice for daily life, no matter where it may take you. However, if you plan on employing your new shirt specifically for fitness applications, the “Air” is the way to go.

Price: $78

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