Learn about condom brand sizes, and how to choose the right size, a girth of –" needs a regular fit; a girth of –6" needs a large fit.
Condom Size Chart: How Length, Width, and Girth Measure Up Across Brands. An outside condom that’s too big or too small can slip off of your penis or break, increasing the risk of pregnancy or disease transmission. You’ll need to know your length, width, and girth in order to.
Using the right condom size is important for comfort, STD prevention, and birth control. Learn how to determine your correct condom size.
Here's the approximate breakdown in condom sizes based on length and girth, and The Average Sex Time Is Not as Long as You'd Think.
But this perception owes more to clever marketing of things like "XL" or "Magnum" condom sizes than any significant difference in their actual dimensions.