For purposes of this study, a "standard" condom is defined by dimensions commonly sourced by the United Nations Population Fund (UNFPA) and United States Agency for International Development (USAID), which procures the majority of the world's condoms. These dimensions are 185mm ± 10mm length, 53mm ± 2mm width, and 70 microns ± 10 microns thick. "Thin" condoms for this study will be of identical width and length to "standard", but 50 microns ± 5 microns thick. Fitted condoms will be produced in a range of sizes with thickness of 70 microns ± 10 microns, with a participant's fitted size as determined by their use of a fitting system consisting of a paper template graduated with non-sequential numbering and lettering. Condoms will be manufactured using the same latex formulation and silicone lubricants (approximately 400mg per condom), and with similar parallel wall designs.