SIZE GUIDE

All OH BOBBY BEHAVE branded underwear follows our standard sizing:


  • Small (S): 28–30 in (71–76 cm)

  • Medium (M): 31–33 in (79–84 cm)

  • Large (L): 34–36 in (86–91 cm)

  • X-Large (XL): 37–39 in (94–99 cm)

  • XX-Large (XXL): 40–42 in (102–107 cm)

  • 3X-Large (3XL): 43–45 in (109–114 cm)

FINDING YOUR FIT

Our underwear is designed to be sexy, supportive and comfortable. Men's underwear naturally has a snug fit, so if you're between two sizes or unsure, we recommend sizing up. The difference between sizes is not drastic.

THIRD-PARTY STYLES

Items that are not OH BOBBY BEHAVE exclusives are sourced from third-party vendors, so sizing may vary by style. Please carefully review the specific sizing information on each product page before ordering.