The Professional Mask Defog is a reef-safe, biodegradable solution designed to keep your mask clear and fog-free throughout your dives.
Built for divers who want reliability without harming the ocean, this formula delivers consistent performance while staying safe for marine life.
Reliable, All-Day Performance
Holds up across multiple dives without needing constant reapplication.
Reef-Safe and Non-Toxic
Biodegradable formula designed to be safe for reefs, fish, and the environments we dive in.
Easy to Apply
Thicker consistency helps it stay on the lens and create a lasting anti-fog layer.
Works Across Activities
Effective for scuba, snorkeling, swimming goggles, and other lenses.
Eco-Conscious Packaging
Bottled using recycled plastics to reduce environmental impact.
For Dive Masks & Goggles:
For Glasses or Other Lenses:
Size: 2 fl oz / 60 ml
A small amount goes a long way. You don’t need to fully rinse it out—leaving a light film is what helps prevent fog during your dive.
The Universal Neoprene Mask Strap is a simple upgrade that makes your dive mask more comfortable and easier to use. Designed to slide over your existing silicone mask strap, this neoprene sleeve prevents hair pulling, improves comfort, and makes putting on or removing your mask much easier.
Whether you're scuba diving, snorkeling, or freediving, this strap cover helps keep your mask secure while eliminating the frustration of tangled hair.
No More Hair Pulling
The soft neoprene sleeve prevents hair from getting caught in traditional silicone mask straps.
Easy to Put On and Remove
Makes donning and adjusting your mask quick and easy—even when wearing gloves.
Improved Comfort
Neoprene sits comfortably on the back of the head and distributes pressure more evenly than standard straps.
Secure Fit
Slides over your existing silicone strap and secures with hook-and-loop tabs to stay in place during dives.
Universal Compatibility
Works with most dive masks, making it an easy upgrade for any diver.
Divers with long hair
Freedivers and snorkelers
Cold-water divers wearing gloves
Anyone looking for extra comfort and easier mask handling
Type: Mask Strap Cover
Material: Neoprene
Thickness: 2.5mm
Weight: 0.05 lb
Activity: Recreational, Freediving, Travel
If you’ve ever had your mask strap rip hair out when removing your mask, this small upgrade makes a huge difference in comfort.
Designed specifically for select GULL masks, the GULL Anti-Fog Film helps prevent lens fogging while maintaining exceptional optical clarity. Once installed, the reusable film dramatically reduces fogging without the need for traditional defog solutions, allowing you to spend more time enjoying the dive and less time clearing your mask.
Each film is precision-cut to fit its corresponding GULL mask, providing seamless coverage and long-lasting anti-fog performance.
Even the best dive masks can fog under the right conditions. The GULL Anti-Fog Film provides a simple, long-lasting solution that helps keep your vision clear throughout your dive.
Unlike liquid defog that needs to be reapplied before every dive, these films remain installed inside the mask and continue working dive after dive with minimal maintenance.
They're especially useful for underwater photographers, instructors, freedivers, and anyone who wants one less thing to worry about before entering the water.
Choose the correct film for your mask model:
Please select the correct model before purchasing.
Installing the film only takes a few minutes.
For best results, follow GULL's installation instructions included with the product.
Compatibility
Type: Anti-Fog Film
Installation: Inside Lens
Reusable: Yes
A properly installed anti-fog film can dramatically improve your diving experience. We still recommend rinsing your mask before each dive, but with the film installed you'll spend far less time dealing with fogged lenses and more time enjoying the underwater world.