The CAPAS Training Fins in black and blue, adjustable size S/M 4 1/2 - 8 1/2, are designed for water sports enthusiasts looking for efficient and comfortable training fins. Made with silicone material, these fins are durable and provide a secure fit for swimmers.   The adjustable feature allows for easy customization to suit different preferences and ensure a proper fit while training in the water. With a sleek design and high-quality construction, these CAPAS training fins are a practical and reliable choice for improving your snorkeling skills.