Is condom 100% sure️

No
 
_Nothing in this world is 100% safe_. Condoms are prepared in such a way that microbes and sperms cannot pass through the material. In real life, however, condoms may not be used correctly every time. Condoms may be reused, they may not be worn correctly, they may break during sexual intercourse, they may slip off during sexual intercourse, they may have expired, or they may not have been stored correctly. These are just some of the reasons why condoms can fail. In fact, the practice of carrying a condom in the wallet or in the pocket can weaken the material by exposing it to high ambient temperatures and increase the chances of failure. If used correctly each and every time, condoms have very high efficiency. In real life however, they have been estimated to be about 85% efficient in preventing sexually transmitted infections and pregnancy.