For his, no bow on the front; only loops on the inside of the front (easier for them to see as they are putting them on).
Actually, I put the loops on the back, so when he first put them on, they were the wrong way around and really, really pinched his bum! I fixed that.
Their mother says they have a LOT of bathing suits, so no more until next year. He will probably need bigger ones next year, but his sister will be able to wear these in a couple of years.