 Standard condoms will fit almost any penis , with varying degrees of comfort or risk of slippage . Many condom manufacturers offer " <unk> " or " magnum " sizes . Some manufacturers also offer custom sized @-@ to @-@ fit condoms , with claims that they are more reliable and offer improved sensation / comfort . Some studies have associated larger <unk> and smaller condoms with increased breakage and decreased slippage rates ( and vice versa ) , but other studies have been inconclusive . 
