I decided to purchase the David Archy Men's 4 Pack Bamboo Rayon Soft Lightweight Pouch Briefs (Black/Dark Gray) after enjoying another pair of bamboo fabric underwear.

Pros
- Fit: as described. No issues with bunching or stretching of fabric as the day goes on. The comfort pouch keeps everything in place without being restrictive.
- Material: soft, comfortable, and flexible. I can wear these to work or the gym. This material is difficult to find in American Stores and feels better than the traditional cotton briefs.

Con:
- Tag is a bit long, which will sometimes bunch up or ride up and out of the waistband. It can easily be cut.

I will definitely buy these again and try some of the other products from this brand.