Size Guide
Ladies & Gentlemen, we've crafted the ultimate size guide for your new favorite boxers, thanks to your feedback.
Don’t be surprised if you find yourself thinking, “Wow, I’ve never gone this big before!” Yep, our sizes tend to be more snug, but trust the guide—it’s your best bet for a great fit.
Still unsure? Reach out to us! No question is too small when it comes to perfect fit!
BioFit Size Guide – Original
(Normal leg, everyday fit)
| Size | Waist (CM) | Waist (Inches) | Leg Opening (CM) | Length |
|---|---|---|---|---|
| S | 48–56 | 19–22 | 19 | 16 cm |
| M | 56–68 | 22–27 | 20 | 16 cm |
| L | 68–76 | 27–30 | 21 | 16 cm |
| XL | 76–82 | 30–33 | 22 | 17.5 cm |
| 2XL | 82–88 | 33–35 | 23 | 19 cm |
| 3XL | 88–94 | 35–37 | 24 | 20.5 cm |
| 4XL | 94–100 | 37–39 | 25 | 22 cm |
| 5XL | 100–106 | 39–42 | 25 | 22 cm |
BioFit Size Guide – 2.0
(Longer leg, more coverage)
| Size | Waist (CM) | Waist (Inches) | Leg Opening (CM) | Length |
|---|---|---|---|---|
| S | 48–56 | 19–22 | 19 | 26 cm |
| M | 56–68 | 22–27 | 20 | 26 cm |
| L | 68–76 | 27–30 | 21 | 26 cm |
| XL | 76–82 | 30–33 | 22 | 27.5 cm |
| 2XL | 82–88 | 33–35 | 23 | 29 cm |
| 3XL | 88–94 | 35–37 | 24 | 30.5 cm |
| 4XL | 94–100 | 37–39 | 25 | 32 cm |
| 5XL | 100–106 | 39–42 | 25 | 32 cm |