Kids' goggles with UV protection, featuring an adjustable strap for a perfect fit. - Intended Use: Children's (approx. 4-9 years old) swimming goggles - Features: UV protection - Strap Type: Adjustable strap Thank you for looking. I only used these once on a trip, and my child has already outgrown them. My child swims quite vigorously, but it seemed like water didn't get in. Although they've hardly been used, please understand that they are not new and may show some signs of use.