Most condoms have a reservoir tip or teat end, making it easier to accommodate the man's ejaculate. Condoms come in different sizes, from oversized to snug and they also come in a variety of surfaces intended to stimulate the user's partner. Condoms are usually supplied with a lubricant coating to facilitate penetration, while flavoured condoms are principally used for oral sex. As mentioned above, most condoms are made of latex, but polyurethane and lambskin condoms are also widely available.
Materials
Latex
An unrolled latex condom
An unrolled latex condom
Latex has outstanding elastic properties: Its tensile strength exceeds 30 MPa, and latex condoms may be stretched in excess of 800% before breaking.[76] In 1990 the ISO set standards for condom production (ISO 4074, Natural latex rubber condoms), and the EU followed suit with its CEN standard (Directive 93/42/EEC concerning medical devices). Every latex condom is tested for holes with an electrical current. If the condom passes, it is rolled and packaged. In addition, a portion of each batch of condoms is subject to water leak and air burst testing.[77]
Latex condoms used with oil-based lubricants (e.g. vaseline) are likely to break or slip off due to loss of elasticity caused by the oils.[78]
Polyurethane
See also: AT-10 Resin
Polyurethane condoms tend to be the same width and thickness as latex condoms, with most polyurethane condoms between 0.04 mm and 0.07 mm thick.[79] Polyurethane is also the material of many female condoms.
Polyurethane can be considered better than latex in several ways: it conducts heat better than latex, is not as sensitive to temperature and ultraviolet light (and so has less rigid storage requirements and a longer shelf life), can be used with oil-based lubricants, is less allergenic than latex, and does not have an odor.[80] Polyurethane condoms have gained FDA approval for sale in the United States as an effective method of contraception and HIV prevention, and under laboratory conditions have been shown to be just as effective as latex for these purposes.[81]
However, polyurethane condoms are less elastic than latex ones, and may be more likely to slip or break than latex,[80][82] and are more expensive.
Lambskin
Condoms made from one of the oldest condom materials, labeled ';lambskin'; (made from lamb intestines) are still available. They have a greater ability to transmit body warmth and tactile sensation, when compared to synthetic condoms, and are less allergenic than latex. However, there is an increased risk of transmitting STDs compared to latex because of pores in the material, which are thought to be large enough to allow infectious agents to pass through, albeit blocking the passage of sperm.[83] Lambskin condoms are also significantly more expensive than other types.
Spermicidal
Some latex condoms are lubricated at the manufacturer with a small amount of a nonoxynol-9, a spermicidal chemical. According to Consumer Reports, spermicidally lubricated condoms have no additional benefit in preventing pregnancy, have a shorter shelf life, and may cause urinary-tract infections in women.[84] In contrast, application of separately packaged spermicide is believed to increase the contraceptive efficacy of condoms.[85]
Nonoxynol-9 was once believed to offer additional protection against STDs (including HIV) but recent studies have shown that, with frequent use, nonoxynol-9 may increase the risk of HIV transmission.[86] The World Health Organization says that spermicidally lubricated condoms should no longer be promoted. However, they recommend using a nonoxynol-9 lubricated condom over no condom at all.[87] As of 2005, nine condom manufacturers have stopped manufacturing condoms with nonoxynol-9, Planned Parenthood has discontinued the distribution of condoms so lubricated,[88] and the Food and Drug Administration has proposed a warning regarding this issue.[89]
hope it is informational enough for you.....have fun and good luck....Which condom is better latex or non latex and why?
trojan is the safest. however, the thinner the condom and the less lubricated, the more real it feels.
You already have a technically perfect answer. It gave good knowledge even to me. Thanks for your question
Just listen to what vhongold has to say. He says it all.
durex is the thinnest condoms.
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