Great showing! Over many years now I have been wearing 527s, they have ‘elastane’ and are extremely stretchy. After a few washes they becum very thin. I find not only my cock but also my balls are very visible in public. If I wear my cock and ball straps as well - wow! Last week I was lucky enough to be wanked off in them and spunked off, what a sight as my spunk seeped through!