
Pro Flex Max Boxer Brief
The Pro Flex Max is made to move with complete comfort.
These everyday sport Boxer Briefs feature The Original 3D Pouch to ensure everything is separated and totally supported. Designed with a 7" inseam, bold colours, and a wide waistband, they're built for active lifestyles. The fabric is a breathable, moisture-wicking polyester blend mesh featuring Ionic+® anti-odour technology that does not wash out.
Features
The Original 3D Pouch
Patented design for lift, support, and total separation.
Breathable Mesh
Moisture-wicking polyester blend keeps you cool and dry.
4-Way Stretch & Support
Moves with you for unrestricted performance.
Ionic+® Anti-Odour Tech
Permanent odour protection that never washes out.
Wide Premium No-Roll Waistband
Stays in place all day without rolling or bunching.
Chafe-Free Flatlock Stitching
Smooth seams eliminate irritation during movement.
Eco-Friendly Fabric
89% Recycled Polyester, 11% Spandex blend.
7" Inseam
Perfect length for everyday wear and active sports.
Ratings
Sizing
| Size | XS | S | M | L | XL | XXL |
|---|---|---|---|---|---|---|
| Waist (in) | 27-29 | 30-32 | 33-35 | 36-38 | 39-41 | 42-44 |
| Waist (cm) | 68-74 | 76-81 | 84-89 | 91-97 | 99-104 | 107-112 |
All BN3TH fabrics are soft and made from a performance stretch fabric. If your measurements are between sizes, select a larger size for a looser fit or a smaller size for a tighter fit.
Original: $20.47
-65%$20.47
$7.16Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Pro Flex Max is made to move with complete comfort.
These everyday sport Boxer Briefs feature The Original 3D Pouch to ensure everything is separated and totally supported. Designed with a 7" inseam, bold colours, and a wide waistband, they're built for active lifestyles. The fabric is a breathable, moisture-wicking polyester blend mesh featuring Ionic+® anti-odour technology that does not wash out.
Features
The Original 3D Pouch
Patented design for lift, support, and total separation.
Breathable Mesh
Moisture-wicking polyester blend keeps you cool and dry.
4-Way Stretch & Support
Moves with you for unrestricted performance.
Ionic+® Anti-Odour Tech
Permanent odour protection that never washes out.
Wide Premium No-Roll Waistband
Stays in place all day without rolling or bunching.
Chafe-Free Flatlock Stitching
Smooth seams eliminate irritation during movement.
Eco-Friendly Fabric
89% Recycled Polyester, 11% Spandex blend.
7" Inseam
Perfect length for everyday wear and active sports.
Ratings
Sizing
| Size | XS | S | M | L | XL | XXL |
|---|---|---|---|---|---|---|
| Waist (in) | 27-29 | 30-32 | 33-35 | 36-38 | 39-41 | 42-44 |
| Waist (cm) | 68-74 | 76-81 | 84-89 | 91-97 | 99-104 | 107-112 |
All BN3TH fabrics are soft and made from a performance stretch fabric. If your measurements are between sizes, select a larger size for a looser fit or a smaller size for a tighter fit.

















