This is the ScubaPro Synergy 2 Single Mirror Lens Trufit Mask Comfort Strap

Features:

• New-generation Trufit Technology design uses two skirts for creating a comfortable, watertight seal
• Main skirt offers a thin and soft silicone material for the best possible fit, seal and comfort against the skin
• Second smaller skirt on top provides support and rigidity where needed
• Push-button buckles attach to tabs on the skirt to optimize range of motion when dialing in fit
• Buckle tabs are flexible, enabling the mask to be folded flat for traveling

SCUBAPRO's Trufit technology includes a double-skirt design that molds to the contours of the face, optimizing comfort while providing a watertight seal. The ultra-clear single glass lens provides a bright, clear, and expansive view of the underwater world, so you won't miss a thing on your dive. Dial in a comfortable, watertight fit every time with the easy-to-use rotating buckles and micro-adjustable strap. Flexible buckle tabs allow you to fold the mask flat for traveling. Includes a spray-painted mask frame for a premium look; backed by a one-year warranty. Driven to constantly innovate and improve the diving experience, SCUBAPRO builds flawless equipment for the work, sport, and lifestyle of people whose passion is found below the surface.