2024-07-10
Water Destroys Regular Sunglasses
Regular sunglasses were not designed for the environment around water. They slide off wet faces, sink to the bottom when they fall, corrode when salt or chlorine dries on the hinges, and develop a haze on the lenses after repeated spray exposure. If you have ever fished a pair of sunglasses out of a lake, dried them off, and noticed the coating is permanently foggy, you know the problem. Water sports demand eyewear that was designed from the ground up to handle moisture, impact, and the relentless glare that comes off any body of water.
Whether you kayak, paddleboard, sail, surf, or just spend a lot of time on docks and beaches, the priorities for water sport sunglasses are different from everyday eyewear. Buoyancy, grip, glare reduction, and durability against water and salt matter far more than style.
Floating Frames: Insurance Against the Inevitable
At some point, your sunglasses will come off your face near water. A wave, a sudden paddle stroke, bending over to tie your life jacket, leaning out to grab a dock line. It is not a question of if, it is when. Regular sunglasses sink immediately. They are gone before you can react, settling into silty lake bottoms or drifting into river currents.
Floating frames solve this entirely. They use materials with built-in buoyancy, usually expanded foam cores within the frame material or air-injected nylon. When they hit the water, they bob on the surface, brightly coloured and easy to spot. You pick them up, shake off the water, and keep going.
There are a few approaches to floating sunglasses:
- Inherently buoyant frames: The frame material itself is less dense than water. These float regardless of lens weight, though heavier glass lenses can sometimes overwhelm the buoyancy of lighter frames. Most work best with polycarbonate lenses.
- Foam-core frames: A closed-cell foam is embedded inside the temple arms and frame front. This provides reliable buoyancy even with heavier lenses.
- Aftermarket float attachments: Foam or air-filled sleeves that slide over the temple arms of any pair of sunglasses. Less elegant but they work, and they let you add buoyancy to glasses you already own.
One important note: not all "floating" sunglasses float with every lens option. A frame rated to float with standard polycarbonate lenses might sink with heavier prescription lenses. If you are getting a prescription pair, check the buoyancy with your actual lenses installed, not just the demo pair in the shop.
Polarization Is Essential on Water
Water glare is perhaps the most intense reflected glare you will encounter in any sport. The surface of a lake or ocean acts like a massive horizontal mirror, bouncing sunlight directly into your eyes from every direction. Without polarized lenses, the glare is fatiguing at best and blinding at worst.
Polarized lenses filter out horizontally polarized light, which is precisely what water surface glare consists of. The difference is immediate and profound. Put on polarized sunglasses near water and the glare vanishes. You see the water surface clearly, and in shallow areas you can often see through it to the bottom. Take them off and the mirror returns.
For any water sport, polarized is not an upgrade. It is the baseline. Non-polarized tinted lenses on water are like a screen door on a submarine: they technically do something, but they miss the entire point.
Best Lens Colours for Water
Grey polarized is the standard for open water. It reduces brightness evenly, which is what you need when staring at a vast bright surface for hours. Brown or copper polarized enhances contrast slightly, which helps when you need to read water conditions, spot submerged hazards, or see into shallow water. For Alberta lake sports, either works well. Grey is more comfortable for all-day wear. Copper gives you more visual information about what is under the surface.
Keeping Sunglasses on Your Face
Strap Systems
A retainer strap is not optional for water sports. Even floating sunglasses need to stay connected to you. If they come off in river current, whitecaps, or ocean surf, they can float away faster than you can retrieve them. A strap keeps them around your neck or tight against your head.
There are two categories: loose lanyards that let the glasses hang around your neck when removed, and snug sport straps that hold the glasses tight against your head during activity. For casual paddling and sailing, a lanyard is fine. For surfing, whitewater kayaking, or anything where you might get submerged, a snug neoprene strap that holds the glasses against your face is the better choice.
Rubber Grip Points
Wet faces are slippery faces. Frames with rubber nose pads and temple grips hold position when skin is wet. The same hydrophilic rubber used in running sunglasses works here: it gets tackier when wet rather than more slippery. Without rubber grip points, you will spend half your time on the water pushing your sunglasses back up your nose.
Hydrophobic Coatings: Worth Every Cent
A hydrophobic coating on the lens surface causes water to bead up and roll off rather than spreading into a sheet that obscures your vision. Without it, every splash leaves a smeared film on the lens that you have to stop and wipe. With it, a quick shake of your head clears most spray.
This coating also makes cleaning easier at the end of the day. Salt residue, sunscreen, and waterborne grime wipe off more readily from a hydrophobic surface. Over a season of regular water use, this adds meaningful lens life because you are not grinding salt crystals across the surface every time you clean them.
Salt and Chlorine Resistance
Saltwater is corrosive. It attacks metal hinges, degrades rubber, and crystallizes in every crevice of the frame. If you use your sunglasses in salt water, rinse them with fresh water after every session. This is the single most important maintenance habit for water sport eyewear. Let salt dry on the frame and it will begin corroding metal components within weeks.
For ocean use, frames with stainless steel or titanium hardware resist corrosion far better than standard alloy screws and hinges. Some water sport frames eliminate metal entirely, using nylon pin hinges instead. No metal, no corrosion.
Chlorine from pools is less aggressively corrosive than salt but still degrades lens coatings and rubber components over time. The same rinse-after-use habit applies.
Prescription Water Sport Sunglasses
If you need vision correction on the water, you have a legitimate safety concern. You need to see other boats, navigation markers, weather changes, and hazards clearly. Contact lenses under non-prescription water sport sunglasses work for some people, but there is a real risk of losing contacts in splashing or spray, and waterborne bacteria can cause serious eye infections with contacts.
Prescription polarized lenses in a water sport frame are the safest option. Polycarbonate prescription lenses keep the weight down for floating frame compatibility. A wraparound frame with rubber grips and a strap gives you secure, clear, glare-free vision on the water without the infection risk of contacts.
If you already own water sport sunglasses you love, prescription inserts that clip behind the main lens are an option, though the additional lens surface can increase fogging in humid conditions.
Quick Guide by Sport
| Sport | Priority Features | Strap Type |
|---|---|---|
| Kayaking / Canoeing | Floating, polarized, wrap coverage | Lanyard or sport strap |
| Paddleboarding | Floating, polarized, rubber grip | Lanyard |
| Sailing | Polarized, salt-resistant hardware, hydrophobic | Lanyard |
| Surfing | Snug fit, impact-resistant, polarized | Tight neoprene sport strap |
| Wakeboarding / Tubing | Impact-resistant, snug fit, floating | Tight sport strap |
What to Buy
Start with polarized. Add floating frames if you will be anywhere the glasses can end up in the water (which is everywhere on water). Get a strap, rinse with fresh water after every use, and consider hydrophobic coating if you will be taking spray regularly. If you need a prescription, polycarbonate lenses keep the total weight compatible with floating frames.
We stock several floating frame options with polarized lenses and can fit them with your prescription. Come in before the season starts, while we still have full stock, and we will get you sorted for whatever you do on the water.