The Vista features the best in Aqua Sphere technology, with a comfortable, leak resistant skirt and a contoured, stylized frame. The Vistas low profile virtually eliminates all of the drag experienced with other swimming masks. With its one-touch buckle, you are ensured a comfortable, custom fit so you can focus on your swim, not your gear. 180-degree Distortion-Free Visibility Curved Lens Technology One-touch, Quick-Fit Buckle for perfect fit with simple adjustments - even while wearing Comfortable, leak-resistant Silicone skirt UV Protection Durable Polycarbonate lenses with anti-fog and scratch resistant coating Latex free, hypoallergenic Made in Italy