Our Proof team didn’t start with an off-the-shelf fabric. They spent two years working directly with our mills and factories to build a merino wool blend from the ground up. The result is the 72-Hour Merino 5-Pocket Pant—a modern essential designed to replace denim and chinos first, and to do more when the day demands it. Crafted from a premium and proprietary stretch-merino wool blend that naturally regulates temperature, wicks moisture, and resists odor for 72+ hours of wear, it stays fresh for days, moves comfortably, and looks right wherever you wear it.
Features
Naturally regulates temperature, wicks moisture, and resists odor for 72+ hours of wear
Clean 5-pocket construction
Durable water-repellent finish (DWR) sheds light rain and unexpected weather
The HB Straight™ is comfortable through the seat with a straight leg from thigh to ankle
With the HB Fit Promise let us know within 30 days if your pants aren't quite right and we’ll either replace them at no charge or issue a full refund–no questions asked
For the absolute best personal fit, measure one of your best fitting pairs of pants and compare to the garment measurements below
Garment Measurements
28
29
30
31
32
33
34
36
38
Waist
30¼
31¼
32¼
33¼
34¼
35¼
36¼
38¼
40¼
Thigh
11⅝
11⅞
12⅛
12⅜
12⅝
12⅞
13⅛
13⅝
14⅛
Leg Opening
7⅛
7¼
7⅜
7½
7⅝
7¾
8⅛
8⅜
8½
All measurements are in inches.
How to Measure
- Waist: Align the front and back waistbands so they’re stacked on top of each other, then measure from edge to edge across the middle of the waistband, multiply by 2
- Thigh: Starting 1" below the crotch seam, measure straight across from edge to edge (not from seam to seam)
- Leg Opening: Measure across the bottom hem from edge to edge
- Inseam: Measure from the crotch seam down to the bottom of the leg hem, following along the inside of the leg
Origin: Made in Indonesia with premium merino wool sourced from Australia
Merino naturally resists odor—so you can wear more and wash less
Machine wash cold with like colors. Tumble dry low on gentle. Do not use fabric softeners. Cool iron if needed.
About Proof by Huckberry
Designed in Austin and tested on Huckberry adventures worldwide, Proof’s performance apparel is built for a life in motion. We focus on classic designs powered by modern fabrics that regulate temperature, wick sweat, and protect from the sun. The result is category-bending gear that performs hard, wears easy, and brings personality to everyday performance. This is gear for growth.
About the 72-Hour Collection
The team at PROOF created performance gear that can be worn for 72 hours straight without showing any signs of wear—or, you know, odor. It’s built from the softest and strongest merino wool on the planet. To back up that claim, we’ve packed pieces from the 72-Hour Collection 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 gear isn’t just for adventure, it’s also a bestselling pick for everyday wear.
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.
