I Can Sea Tees

Rx Lens Strength + Face Fit

Find Your Prescription Mask Quiz

Built specifically for prescription snorkel and dive masks, this quiz helps match your lens strength, face fit, and intended use in one simple flow.

Answer up to 6 quick questions in about 2 minutes.

Start the quiz →

Have your prescription nearby if you know your numbers. If not, no problem, we can still guide you.

Lens strength Face fit Snorkel or dive
4.94 / 5 based on 1253 verified reviews

Your prescription image is only used to read your values. It is never stored.

Your T-Shirt Helps Build and Grow a Coral Reef!

When you buy from Oceans Optics, you are not just getting an ultra cool Ocean Tee, you are helping us build real living coral reefs.

A portion of every sale goes towards our artificial reef project in Koh Tao, Thailand. We worked with Global Reef and the Thai Department of Marine & Coastal Resources to sink a custom steel structure shaped like a prescription scuba mask. Onto this frame we attach living coral fragments that grow over time, attracting fish and turning the structure into a living reef and safe haven for marine life.

So each time you wear your Tee, you can be proud knowing you are also actively helping save the ocean we all love. Thank you!

Learn More
Snorkeler wearing a twin-lens mask over a coral reef
Snorkeler wearing a twin-lens mask over a coral reef
MORE THAN JUST A MASK

Your Free Snorkeling Learning Hub

MORE THAN JUST A MASK

Your Free Snorkeling Learning Hub

At Oceans Optics, we believe the right gear is only part of the experience. Knowing how to use it, what to look out for, and how to feel confident in the water matters just as much.

Built by Professional Instructors
Explore lessons on:
Gear & Vision
Safety & Conditions
In-Water Skills
Underwater Science & Your Body
Marine Life & Conservation

Free to explore. Easy to follow. Built to help you snorkel with more confidence.

EXPLORE THE LEARNING HUB