Tybee Rashguard Romper UPF 50Easily our most requested item Romper Rash Guards! Now babies 3M 2T can safely (and comfortably!) match big brother by the water. We wanted this piece to have easy on and off features so we included a zip neck so no more squeezing and fighting to get swimwear over their heads. But that's not all snaps in the seat allow for EASY diaper changes without having to completely undress baby. 92% Poly 8% Lycra and, of course, 50+ UPF!