Speedo Jr. Adventure Mask/Snorkel/Fins Set Polycarbonate lenses with anti-fog coating for clear viewing Comfort fit silicone skirt for leak-proof fit Splash-resistant snorkel prevents water from entering snorkel top while surface swimming Designed for smaller, narrower faces Fins have adjustable heel straps for the perfect fit Mask has speed fit easy headstrap adjustment Jr. Size fits most children and young adults 6-14 years old