Maillot de bain une piece en anglais

A "maillot de bain" is a swimsuit, and in English, it's commonly referred to as:

• Swimsuit
• Swimsuit top (if it's a one-piece swimsuit)
• Bikini (if it's a two-piece swimsuit)

So, if you're looking for a one-piece swimsuit in English, you can say:

• "I'm looking for a swimsuit top."
• "Can you show me a one-piece swimsuit?"
• "I want to buy a swimsuit."

If you're looking for a two-piece swimsuit, you can say:

• "I'm looking for a bikini."
• "Can you show me a two-piece swimsuit?"
• "I want to buy a bikini."