IST dive equipment has been a trusted name in scuba and watersports gear for over 35 years. Safety, reliability and quality are our primary design objectives when bringing any new product to our customers, and our IST Imperial Panoramic View Hands-Free Water Clearance Mask is just one more example of that commitment. The Imperial is designed to be very sturdy and comfortable mask which provides great visibility, fit, durability and comfort. Most importantly, precision construction of the mask’s side windows increases peripheral vision, and the built in purge function means divers or snorkelers can easily clear out the water inside the mask without ascending to the surface.