The cap is made up of two parts: a U-shaped polyurethane adhesive film and a reservoir tip that sticks to the adhesive. The film can be worn for hours or even days before sex. You can bathe in it and urinate with it (though we're not sure why you would). The reservoir is added immediately before sex.
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After failing to win a funding prize from the Bill and Melinda Gates Foundation, Powell is trying to raise money for making his condom through an IndieGogo campaign, which will launch Sunday.
Regular condoms cover the length of the penis because many sexually transmitted infections are spread through skin-to-skin contact. These include genital warts, genital herpes, HPV, syphilis and molluscum. Just one problem: It may not be as good as conventional condoms at stoping STIs.