Speedo friendly saunas in London?

[ESfan]

Well I want to wear speedos because I love them. I'm talking about gay saunas that are for cruising and meeting other men so there are areas that are not just literally a sauna and I'd rather be walking around enjoying my speedos. The drugs comment is just what I have read on reviews online to explain some of the dress code policies. Apparently some places have drug problems and take literally everything off you at the door and just give you a towel. To be clear, i'm not into drugs myself!