Proof
72-Hour Merino 5-Pocket Pant - HB Straight
72-Hour Merino 5-Pocket Pant - HB Straight
Story
If you were to pick one pant—make it merino
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
- Order your normal jean or pant size
- 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
Materials & Care
- Body Fabric: 47% Merino Wool, 33% Nylon, 14% Polyester, 6% Elastane (247 gsm)
- Pocketing: 92% Polyester, 8% Spandex
- Finish: C0 PFC-free durable water-repellent (DWR) coating
- 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.
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.
Terms and limitations here
