How it should be used
Male condoms should not be used with oil based products, female condom, or another condom on top. although it should be protected by heat, put on correctly, and be used within "shelf life". remove before erection is lost other wise semen might leak out.
the 3 types of condoms are latex, polyurethane (non-latex), and lamb skin. they also come in various size, color, thickness, flavor, and how lubricated they are.
condoms might protect against some things but they can also decrease sexual sensation, loss of erection, allergic reaction, and they might slip off if not worn properly or used in the wrong size. lamb skin condoms are thinner which makes them easier to break or rip.