These adidas Boy's Performance Big Bars Swim Boxers are designed for active kids. They feature an elastic waist with an inner drawcord for a secure fit. The fabric is made from 78% nylon (recycled) and 22% elastane, offering comfort and durability. Infinitex Fitness Eco chlorine-resistant fabric ensures longevity in the pool. These mid-rise swim boxers are perfect for training and swimming sessions.