- Boxer shorts
- Tight briefs
- Sweatpants (fleece or other loose and soft fabric sweat pants)
- Polyester / Silk
- Denim
- Leather
- Layers of any combination of the above. Loose fitting layers change the feeling.
Experimenting with what you wear (or don't wear) creates an entirely different experience each time.
NOTE: Yes, this is often a favorite female masturbation technique also!