1.【NO LEAKAGE】: The Professional Scuba Mask should be made of liquid silicone. The skirt side of the diving mask is made of soft, food-grade liquid silicone and has a double-layer waterproof design that prevents leakage and cannot compress the face even when diving. The soft silicone frame fits a wide variety of adults and teenagers.2.【One-piece lens design】: The one-piece lens reduces visual obstruction and maximizes our underwater view. Whatever you are into freediving, snorkeling, swimming, spearfishing, or other water sports, you will be delighted with the excellent visual performance.3.【Stylish design】: Diving Mask has a stylish modern design with a cool black finish to give you a high-end fashion style that will make you stand out from the crowd. Black silicone can also prevent lens reflections (reflections on the lens) to reduce blurred vision.4.【Easily adjustable strap】: The adult snorkel mask has an adjustable silicone head strap which makes the mask suitable for all types of adult faces. Our diving mask is a great gift for men and women who love to snorkel.5.【DRY SNORKEL】: A flush valve with a one-way port allows you to purge and drain water from the snorkel.