Mens Underwear Size Chart
Men’s Underwear Size Chart
Measure around your natural waist. These waist ranges match the size chart on our product pages.
| Size | Waist (inches) |
|---|---|
| Small | 28–30 |
| Medium | 32–34 |
| Large | 36–38 |
| XL | 40–42 |
| XXL / 2XL | 44–46 |
| 3XL | 48–50 |
Most colors and styles run Small through XXL/2XL. Some bamboo boxers, performance boxers, and limited print boxer briefs also offer 3XL — check the size selector on each product. Performance Trunks typically offer Small–2XL.
Fit by style
- Bamboo Boxers & Performance Boxers — relaxed / classic fit; about 3" inseam; comfortable stretch & flex.
- Soft Bamboo Boxer Briefs with Anti-Chafing Glide Zone — snug athletic fit; 7.5" inseam; support pouch with fly; soft bamboo/spandex blend.
- Performance / Limited Edition Print Boxer Briefs — athletic boxer-brief fit with support pouch; cool soft micro-mesh performance fabric.
- Performance Trunks — shorter trunk cut; about 3" inseam; support pouch with fly; cool soft micro-mesh polyamide + spandex.
- Bamboo Long Underwear — about 31" length (one length fits most).
How they should feel
- Boxers: secure at the waist, relaxed through the seat and thighs.
- Boxer briefs: snug but not restrictive through the seat and thighs.
On any product page you can also open the Size Chart link next to the size options. Questions? Email info@chillboys.com.