Description
Proteus Dive Mask by IST
Permanent Anti-Fog Technology and Ultra-Low Volume
A fogged mask can ruin a dive and compromise safety, while constantly applying defog gels is a tedious pre-dive chore. The IST Proteus Mask solves this entirely with an advanced, factory-applied Anti-Fog Lens Film. Simply peel away the inner protective matte layer before your first dive, and the permanent film prevents condensation buildup—no burning, scrubbing, or chemical defoggers required. Paired with this visual clarity is a super low-volume, twin-lens architecture. By bringing the tempered glass lenses exceptionally close to the eyes, the Proteus provides a massive field of vision while keeping the internal volume minimal. This makes clearing and equalizing fast and effortless, making it an outstanding crossover mask for both technical scuba diving and freediving.
Flexible Skirt-Mounted Buckles for a Superior Seal
Fit dictates performance, and rigid mask frames often struggle to seal on wider facial profiles. To combat this, the Proteus integrates its strap buckles directly into the flexible silicone skirt rather than anchoring them to the rigid plastic frame. This design absorbs tension from the mask strap, allowing the skirt to articulate naturally and maintain a watertight seal without warping the frame or causing pressure points on the forehead. Available in high-quality black silicone to block out distracting glare, or a clear/blue design to let in maximum light, the mask is finished with the latest painting technologies for lasting durability against saltwater and sun exposure.
Note: To preserve the factory-applied anti-fog film, DO NOT scrub the inside of the lenses with toothpaste, abrasives, or chemical cleansers, and never use a lighter to burn the lens. Simply rinse with fresh water before and after every dive.
Features
- Factory-Applied Anti-Fog Film: Integrated lens technology completely eliminates fogging without the need for aftermarket sprays, spit, or gels.
- Ultra-Low Volume Design: Sits incredibly close to the face, minimizing the air required to equalize or clear the mask—ideal for both scuba and freediving.
- Expanded Field of View: The proximity of the twin lenses to the eyes drastically increases both peripheral and vertical visibility.
- Skirt-Mounted Buckles: Buckles attach directly to the soft silicone rather than the hard frame, absorbing strap tension and easily accommodating wider facial profiles.
- Crossover Performance: The streamlined, low-drag profile performs flawlessly whether you are on a deep technical trimix dive or breath-hold freediving.
- Simplified Maintenance: Requires only a simple fresh water rinse; no harsh detergents or abrasive scrubbing needed.
Specs
- Brand: IST
- Product: Proteus Mask (MP201)
- Mask Type: Twin Lens
- Internal Volume: Super Low
- Lens Technology: Permanent Anti-Fog Film
- Buckle System: Skirt-Mounted, Articulating
- Skirt Material: Premium Silicone
- Available Options: Black Silicone or Clear/Blue Silicone
Reviews
Product Q&A
Easy Returns
60-Day Hassle-Free Returns
Not the perfect fit? No problem. We offer a 100% credit or refund on any item returned within 60 days, as long as it's in new, unused condition with its original packaging. We want you to be happy with your gear, period.
Click here for more info100% Secure Shopping
Order With Confidence
Your security is our top priority. We use the latest encryption technology to ensure your personal information is 100% safe, so you can shop with total peace of mind. Not comfortable ordering online? Give us a call at (815) 267-8400 and we'll gladly help you over the phone.
Full Manufacturer's Warranty
Authorized Retailer for IST
We are an Authorized Dealer for every single brand we sell. This means you are getting 100% authentic gear, and your purchase is fully protected by the manufacturer's warranty. No gray-market gear, no warranty worries. We've got your back.
Our Promise to You
We\’re Divers, Just Like You
Our promise is that you get the right gear, and that it's right the first time. As divers ourselves, we'll help you find the perfect fit for your style of diving. Then, we'll quality-inspect your order before it ships to ensure it's ready for your next adventure. We're your local dive shop, no matter where you are.