A short-sleeved, warm swimsuit in blue and black exudes a professional and understated athletic style. The classic and generous combination of blue sleeves and a black body is suitable for various occasions. This swimsuit is especially popular with boys, as it maintains a professional image during swimming training while providing ample warmth and protection. Made from high-quality CR wetsuit material, and utilizing flatlock stitching, it is resistant to damage even after frequent swimming practice. The 3mm thickness performs excellently in indoor pools during autumn and winter, allowing children to stay warm in cooler water temperatures and focus on improving their technique. The front zipper design makes it easy to put on and take off, and the embossed fabric provides extra wind protection on shore. The short-sleeved design ensures unrestricted arm movement while swimming, making it the best choice for balancing performance and warmth.