72-Hour Merino T-Shirt - Classic Fit (Tall)

Story

The merino t-shirt, reinvented—go farther, pack lighter, and skip laundry for days

Our bestselling 72-Hour Tee is woven from a super-soft merino wool blend that takes advantage of the material's all-natural performance, while also boasting long-lasting durability and machine-washable convenience. This high-performance shirt is built for everyday style, no-hassle travel, and casual days outdoors. Even after 72+ hours of constant wear, it’ll still look on-point and pass the "sniff test" thanks to the naturally odor-resistant and moisture-wicking properties. Our community has wear-tested these tees everywhere from the streets of Tokyo to the trails here in Austin, and we can’t wait to hear where you take yours.

Features

• The Tall version of the 72-Hour Merino T-Shirt has a classic fit with added length in the body and sleeves
• 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 for easy care throughout the life of the garment—just stick with cold/gentle washing to avoid shrinking
• Rated UPF 30+ for sun protection

Sizing

• The Tall version of the 72-Hour Merino T-Shirt has a classic fit with added length in the body and sleeves. Take your normal t-shirt size
• Wool-based products will shrink slightly in a conventional washer and dryer, so we recommend either cold/gentle washing and air drying, or taking the next size up to compensate
• For the best personal fit, compare the measurements of one of your best-fitting shirts to the garment measurements below

Garment Measurements

	S	M	L	XL	XXL	3XL
Chest	40	42	44½	47	50	53½
Shoulder	17½	18	18⅝	19¼	20	20⅞
Body Length	29	29½	30¼	31	31¾	32½
Sleeve Length	17	17¾	18½	19¼	20	21

All measurements are in inches.

How to Measure - Chest: Measure straight across from edge to edge, starting 1" below the armhole, multiply by 2 - Shoulder: Measure straight across from shoulder seam to shoulder seam. Again, it’s easiest to measure across the back of the garment - Body Length: Start at the top of the shoulder where it meets the neck seam, and measure straight down to the hem - Sleeve Length: Start at the center of the back of the neck, measure straight across to the shoulder seam, and then follow the edge of the garment to the cuff. Pro tip: it’s easiest to measure across the back of the sleeve

Materials & Care

• 87% 16.5 micron merino wool, 13% nylon, 150gsm
• Made in China and Indonesia with wool sourced from Australia and New Zealand
• Sourced from industry leader Indorama, the specialized merino/nylon blend used in the 72-Hour Collection 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.
• Machine wash cold on gentle with mild detergent; tumble dry low or air dry to avoid shrinkage; do not use softener or bleach

About the 72-Hour Collection

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.

The Sweat Test Guarantee

Put your new Proof gear through its paces. If it does not meet your expectations, we'll accept your dirty laundry and issue a refund, no questions asked.

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