Menswear
From Thikipedia
Menswear is the official uniform of Mensa, the international charity for Mentalists. A form of lycra body suit, menswear is just as comfortable in a social environment as it is at international swimming competitions.
Olympic champion and Motivational Speaker Duncan Goodhew MBE wore menswear for a fundraising "swimathon" in 1999, raising over £5000 for the UK division of Mensa.
Menswear is available in all sizes - it's never too young to start!