The $20 vs $179 Sunglasses Test: What Are You Really Getting?
The $20 vs $179 Sunglasses Test: What Are You Really Getting?
You've been there. Standing at the servo counter or the chemist rack, staring at a pair of $20 sunnies. They look fine. They've got lenses. They block out the sun. You grab a pair and walk out feeling pretty savvy.
Then someone tries to sell you a $179 pair of sunglasses and you think: mate, it's just plastic and glass.
Fair enough. It's a reasonable question. So let's actually answer it.
What $20 Sunnies Are Actually Doing
Cheap sunglasses darken the world. That's it. The tinted lens reduces brightness — but here's the catch: it also causes your pupils to dilate.
In bright light, your pupils naturally constrict to limit UV entering the eye. Put on a dark lens that doesn't block UV, and your pupils open up, letting in more UV than if you wore nothing at all.
That's not a scare tactic — it's basic ophthalmology. The Australian and New Zealand Standard for sunglasses (AS/NZS 1067) exists precisely because of this. Lenses rated to this standard actually block UV radiation, not just light.
Most $20 servo sunnies carry no rating at all. Some will say "UV400" on a sticker that peels off after two weeks.
What to look for:
- AS/NZS 1067 Category 3 — required for Australian conditions
- UV400 rated — blocks wavelengths up to 400nm (both UVA and UVB)
- Polarised — this is separate to UV, but critical for glare reduction
What You're Paying For at $179
Let's break it down honestly.
1. The Frame
A $20 frame is injection-moulded plastic — usually cheap acetate or polycarbonate. It works, but it flexes under heat (welcome to Australian summer), fatigues over time, and snaps if you sit on it.
At $179, the ShadyMate Voyager uses a carbon fibre frame — the same material used in aerospace and motorsport. The key properties:
- 22 grams total weight — lighter than most plastic frames
- Doesn't fatigue — carbon fibre has no yield point, so it springs back to shape every time
- Heat resistant — won't warp sitting on your dash in a 60°C car
2. The Hinges
This is where cheap sunnies fall apart — literally.
The Voyager uses 100% titanium, 5-barrel torsion hinges. That means:
- Smooth open/close action from day one to year five
- Torsion springs that maintain tension without over-tightening
- No screws to lose, no pins to work loose
The hinges on a $20 pair? Usually a single-barrel nickel alloy pin that either seizes or strips within months.
3. The Lenses
This is the most important part and the one most people ignore.
The Voyager lenses are:
- Polarised at 45° — specifically angled to eliminate horizontal glare from roads, water, and screens
- Dark grey tint — neutral colour rendering, so traffic lights actually look the right colour
- Rated to AS/NZS 1067 Category 3 — genuine UV protection, not a marketing sticker
- Scratch-resistant coating — hard enough to handle daily use, soft enough to clean with a shirt
A cheap lens is often just tinted polycarbonate with no coating. First time you wipe them on your sleeve, they're scratched.
The Real Test: After 12 Months
Here's where the value maths actually works out.
$20 pair: Most people replace them 2–3 times a year. Lost at the beach, snapped in the car, or just scratched to the point of being annoying. That's $40–$60 a year, with variable UV protection and guaranteed build quality issues.
$179 pair: One pair. Built to last years, not months. The Voyager comes with a lifetime warranty — if the frame or hinges fail, they're replaced. Not because we're feeling generous. Because the materials are built to outlast the warranty claim.
Cost per year on a 5-year lifespan? $35.80. Less than the cheap option.
But wait — what if I lose them?
Also fair. Losing a $179 pair stings more than losing a $20 pair, no question.
But here's the honest answer: people lose cheap sunglasses more because they care less about them. When something costs $179 and you know exactly why, it lives in a case, not the bottom of a bag.
What the Research Says
Australian optometrists consistently cite two issues with budget sunnies:
- Inconsistent UV certification — no independent testing, just self-declared ratings
- Frame fit — cheap frames that don't sit flush to the face let UV in around the edges
The second point is underrated. A well-fitted frame isn't just about comfort — it's about the lens actually sitting in front of your eye, not 10mm away with a gap on the sides.
So: $20 or $179?
Here's the honest version:
Buy the $20 pair if: You need something for 3 days at a festival and you're definitely going to lose them.
Buy the $179 pair if: You want something that actually protects your eyes, survives Australian conditions, and you're tired of replacing cheap frames every few months.
The Voyager isn't expensive for a gimmick. It's priced what it costs to build a carbon fibre, titanium-hinged, properly polarised pair of sunglasses with genuine UV certification — and still be $200 cheaper than comparable luxury brands.
The ShadyMate Voyager is $179.99 AUD with free shipping and a lifetime warranty on frames and hinges. Available in Black, Blue, and Red.
