Cressi Prisma UV 420 Lens Mask

Quick answer: The Cressi Prisma is a fold-flat mask with Cressi's patented Fog-Stop anti-fog system, UV 420 coated lenses, and room for both negative and positive optical lenses.

Fit note for bigger divers

Cressi doesn't publish a face-size rating for the Prisma. Do the fit test below, and if you have a broad face, compare it against our wide-fit masks.

What it does well

Fog-Stop channels the warm, damp air from your nose away from the lenses, and soft heat exchangers on the outside of the skirt cool the inside so moisture is trapped before it reaches the glass. The micro-adjust buckle connects to a soft point on the frame, so tightening the strap doesn't deform the skirt and let water in. Two frame materials and Cressi's soft skirt let it fold flat to fit a BCD or cargo pocket.

What you get

• UV 420 coated lenses
• Fog-Stop anti-fog system with external heat exchangers
• Silicone skirt
• Micro-adjust buckles on a soft frame connection
• Fold-flat frame

Before you buy

The Prisma takes optical lenses for both negative and positive correction; confirm your correction with your eye doctor before you order them. Hold the mask to your face without the strap and breathe in gently through your nose; it should stay put without pressure at your temples or nose pocket. Read Can You Dive With Glasses? Your Best Options and How to Fit a Dive Mask. More options: Wide-Fit Scuba Masks for Larger Faces.