 Most condoms have a reservoir tip or <unk> end , making it easier to accommodate the man 's <unk> . Condoms come in different sizes , from oversized to <unk> and they also come in a variety of surfaces intended to stimulate the user 's partner . Condoms are usually supplied with a <unk> coating to facilitate penetration , while flavored condoms are principally used for oral sex . As mentioned above , most condoms are made of latex , but polyurethane and lambskin condoms also exist . 
