i'm writing a fiction. in this world, there is an unique sports, "Pee Holding". In the sports, person  drinks much water, tries to hold pee as much as possible.  in "Pee Holding", there is an uniform which
* can easily move to hold pee
* can easily check abdomen because abdomen is swollen when she is holding pee
* is charming
* is sexy
generate some unique design of uniform. Describe its color, size, detailed specifications.