This is the ScubaPro Frameless Scuba Diving Snorkeling Mask Features: Frameless single lens design provides an expansive field of view while reducing volume. Soft silicone skirt uses a double-seal system for a comfortable, leak-proof fit. Traditional buckles attach to the skirt, enabling the mask to be folded flat for traveling. Wide headband allows for a comfortable fit against the back of the head. SCUBAPRO's FRAMELESS is diving's original frameless mask, and it's still the best. Its distinctive rectangular single lens shape is classic, providing an excellent field of view on the periphery as well as straight ahead. The soft silicone skirt is comfortable yet durable, and the double-edge seal feels good against the skin. The buckle system is easy to use and allows for quick adjustments. Buckles attach to flexible tabs on the skirt; this optimizes strap angle when dialing in fit. The wide headband spreads the load on the back of the head, greatly enhancing comfort. After decades on the diving scene, the original FRAMELESS continues to be the mask of choice among professional divers throughout the world. "
