72-Hour Merino Long Sleeve T-Shirt

Story

Merino wool long sleeve t-shirt that never itches and stays fresh no matter how many miles you put on it

Our bestselling 72-Hour collection is crafted from a New Zealand merino wool with a nylon core so you can toss it in the washing machine. The ultimate travel shirt in our arsenal, it does just as well as a merino wool base layer as it does on its own as a casual long sleeve t-shirt—perfect for adventures that call for packing light and staying comfortable. Even after three days hours of constant wear, this shirt still passes the smell test thanks to the naturally odor-resistant and moisture-wicking properties of merino wool.

Features

• Premium long sleeve t-shirt 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 for easy care throughout the life of the garment—just stick with cold/gentle washing to avoid shrinking
• Rated UPF 30+ for sun protection

Materials

• 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.

Sizing

• The 72-Hour Merino Long Sleeve T-Shirt has a slim, performance fit through the chest and body
• If you're looking for a looser or more casual fit, size up from your usual 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 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
Waist	26 - 28	28 - 30	30 - 32	32 - 34	34 - 36	36 - 38	38 - 40
Garment Body Length	26¾	27¼	28	28¾	29½	30½	31½

All measurements are in inches.

Care

• Machine wash cold on gentle cycle
• Tumble dry low or air dry to avoid any shrinkage
• Use delicate/mild detergent
• Do not use softener
• Do not bleach

About The 72-Hour Collection

The team at Proof created a collection of performance shirts 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’ve packed a merino wool layer 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, these temperature-regulating styles aren't just for travel, they're also our all-time bestsellers for everyday wear.