The ES170 Mask has wide field of vision while maintaining a relatively low volume for its lens size. The tear drop design of the lenses provides an easy view of gauges or computers when looking down. The lens design also ideal for CCR divers viewing their heads up display. A rugged frame provides durability and style with its dark red insert. The high quality double seal silicone skirt provides a secure seal on a wide range of divers. Tech mask buckles and a silicone strap make for easy adjustment and a secure fit. A protective mask box is included for storage.