Carter's Dresses Watermelon Lined Bubble Romper One Piece Size 8m Golden Ivy Ruffle Romper Meadow Ivy Long Sleeve Personalised Bubble Romper Milk Blossom and Pear Girls Monogram Bubble Romper, Blue Marlin Summer Bubble Romper. These ridiculously cute baby rompers are light weight and perfect for the hot months. They feature snap crotch for easy diaper changes and are roomy enough for wearing over cloth diapers. This style has flutter sleeves and an elastic neckline for easy on and off.