Built for everyday life, with the range to travel and move when needed.
The Proof team didn’t start with an off-the-shelf fabric. They spent two years working directly with their mills and factories to build a merino wool blend from the ground up—testing, refining, and wearing it through long workdays, late dinners, travel that blurs together, and light adventures off the grid. Nothing like it existed on the market.
The result is the 72-Hour Merino 5-Pocket Pant—a modern essential designed to replace denim and chinos first, while doing more when the day demands it. Cut like your favorite jeans, it stays fresh for days, moves comfortably, and looks right wherever you wear it. Polished enough for everyday wear. Easy enough for travel. Ready when plans change.
Features
Premium and proprietary merino wool blend naturally regulates temperature, wicks moisture, and resists odor for 72+ hours of wear
Clean 5-pocket construction inspired by classic jeans—polished enough for everyday wear
Subtle stretch built in for all-day comfort without sacrificing structure
Durable water-repellent finish (DWR) sheds light rain and unexpected weather
Hidden zip pocket at back right for securing valuables and everyday carry
Gusseted crotch for added durability and unrestricted movement
Versatile by design—looks sharp at work, travels easily, and holds up on light hikes and bike rides
Sizing & Fit
The HB Athletic Tapered™ is made for the guy with a fuller seat and thigh (AKA this guy doesn’t skip leg day) with a narrow tapered leg
Order your normal jean or pant size
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 best personal fit, compare the measurements of one of your best-fitting pants to the garment measurements below
Garment Measurements
28
29
30
31
32
33
34
36
38
Waist
30
31
32
33
34
35
36
38
40
Thigh
11½
11¾
12
12¼
12½
12¾
13
13½
14
Leg Opening
6⅜
6½
6⅝
6¾
6⅞
7
7⅛
7⅜
7⅝
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 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.
