Obviously you don't wear you very best clothes, they won't be ruined but you may get some water marks on some materials. If it is warm or hot girls tend to wear a bikini either with or without shorts. Others just take their top off and wear their bra and shorts or skirt. Most guys will just be wearing a pair of shorts. Once soaked with foam most clothing will cling to your skin and some materials will go seethrough so choose your clothes accordingly. If you want to create your own foam party there are plenty of foam machine about that you can hire or buy click here for details. For ideas about holding your own foam party