4F Children's Boys' Blue Flip-Flops with Straps Size 31 Product Description Navy blue flip-flops by 4F, model J4L19-JKLM205-31S, are the perfect footwear for boys for warm days. Designed with comfort and functionality in mind, these flip-flops are perfect for both everyday wear and spring and summer activities. With a lightweight construction and sturdy rubber straps, these flip-flops provide proper foot support and comfort with every step. The sole made of EVA foam of various densities guarantees excellent cushioning and lightness, which makes the flip-flops extremely comfortable to use. The J4L19-JKLM205-31S features a classic fit and sporty style, making it the perfect choice for young, active boys. In addition, the manufacturer's original packaging ensures that the product arrives to you intact.