Men wear bikini top. Many European beaches are gravel or even sharp rocks, so footwear is essential. If I have a pool party at my house, and everyone is in more conservative trunks, don't be the dude in the Speedo. Why do women beach volleyball players wear bikinis while men wear shorts and tank tops? DaveK 2, forum posts. More From Fashion. What does this mean for Speedo wearing? RocketNews24 Japanese. These suits are made from spandex and provide little thermal protection, but they do protect the skin from stings and abrasion. No one knows the statement piece better than Europeans. Being a Mediterranean island, a trip to the beach was at the top of my to-do list. Women have thong bottoms, why shouldn't men have Speedos?