Size is crucial! A condom that is too large can slip off, and one that is too small is uncomfortable and can strangle the penis. We've been saying this since we started in 2004. The size 60mm corresponds to a circumference of 12cm. This size is ideal for those who find that the standard-sized condoms they've tried so far are far too tight. Now there are condoms that are over 70mm in size, which also fall into this category, starting from 60mm.