This is the Cressi Sub Piuma Evolution CRYSTAL Silicone 1 Lens Scuba Diving Mask

It Features:

• Original and extremely transparent Crystal Clear Silicone (Cressi exclusive)
• Single raked glass (Cressi patent) for an incredible field of vision
• The special differentiated skirt structure allows it to fit comfortably to the face and seal perfectly
• Very narrow headband that is invisible when the mask is put on
• Instantly adjustable buckles attached to the headband via a flexible and indestructible element
• Minimum internal volume
• The wide strap has a large surface area to rest on the back of the head
• Silicone boasts exceptional resistance to aging and yellowing over time that is far greater than that of traditional silicones
• The strap can be adjusted quickly and precisely, even when wearing thick protective gloves

Piuma, thanks to its wide field of vision, exceptional transparency and comfortable skirt, is the perfect mask for swimming, snorkeling and scuba diving. The minimum internal volume allows it to be used for free diving too!