100% Speedtrap glasses

The 100% Speedtrap glasses provide excellent eye coverage and plenty of uninterrupted vision via a single lens, although the fit worked perfectly for one of our reviewers and not for another, so try before you buy.

• Pros: Huge coverage, adjustable arm length, simple lens swap
• Cons: Polarising looks, big price tag

100% is a motocross brand that has recently made the leap into cycling, getting loads of coverage courtesy of three-time world champ Peter Sagan.

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The Speedtrap sunglasses feature a Grilamid TR90 frame that is lightweight, strong and shatterproof, while the thermoplastic elastomer tips of the arms (or temples, if you want to be a bit more professional about it) are adjustable for length. Pulling out or pushing in those end pieces gives you the choice of three positions covering about a centimetre. That might not sound a lot but it can make a difference if there's any interference with your bike helmet's fit system, for example.

The nosepiece is thermoplastic elastomer too, soft and a little squidgy to the touch. I found that this helped to keep the glasses securely in place. As you know, we had the hottest summer in about a billion years (or something) in the UK, yet despite all that heat and a helluva lot of sweating, these have never slipped in use – not even a little bit.

You can't change the nosepiece but you do get inserts that fit onto the existing nosepiece. These make the space between the two sides smaller and move the glasses higher up your face.

Although I loved the fit, fellow road.cc tech ed Dave Arthur could barely have felt more differently. Dave found the Speedtraps too large and they wouldn't stay put on his nose (he didn't have the option of adding the nosepiece inserts because they didn't come with our review sample). He just couldn't get on with them at all. They are large, there's no getting away from that, but they're not particularly wide across the temples. Obviously, when it comes to fit we're all different so it makes sense to give 'em a try before handing over your cash.

The polycarbonate lens is a single piece and it's large enough to provide plenty of protection. There's a lot of acreage here! I've not had any insects, gravel or other unwelcome intruders inside during several weeks of testing.

That lens provides 100% UV protection (it's UV400 so it blocks all light rays with wavelengths up to 400 nanometres) and it features both a scratch-resistant coating and what's called an Hyroilo treatment to repel oil and water. Sweat can still drip down the lens and leave a salty trail behind it, though.

The 100% glasses are available with various different lenses, all featuring small vents to help prevent fogging. The one I had was a HiPer blue multilayer mirror lens with light transmission of 13% making it suitable for sunny days, of which we've had plenty recently (thanks Mother Nature). It doesn't make everything look blue, it just takes away some of the brightness. You also get a clear lens for low-light conditions.

Swapping between them is pretty simple: there's a little clip that attaches the top section of the frame to the bit by the nosepiece (you can't see it in use because it's right between your eyes). Pushing that open allows enough movement in the frame to remove and replace the lens without any fear of damage. You never worry that you're about to snap something.

100% describes the Speedtraps as having 'aggressive futuristic styling'. They're certainly angular, distinctive and far from subtle. You can make up your own mind, of course, but I quite like the looks and it's not a case of style over substance – I really like the amount of coverage you get here. The one thing I would say is that there are a few little nooks and crannies where dirt and grit can lurk after a wet ride. You can get it all off, it just takes a bit longer than with some other glasses.

A price tag of £184.99 puts the 100% Speedtrap among the dearer options that we've reviewed on road.cc lately, although not as expensive as the Smith Attack Max, for instance, and virtually the same price as the Oakley Flight Jacket with a single lens. You get two interchangeable lenses here, a hard case, the nosepiece inserts I mentioned and a branded storage and cleaning bag.

> Buyer's Guide: 24 of the best cycling sunglasses

Overall, I really like these glasses. They provide a huge amount of coverage, they fit me very well – although they didn't fit Dave at all – you get a degree of adjustability and swapping lenses is simple. The quality is high throughout and if you like the distinctive looks might think the price is worth paying.

Verdict

High-end eyewear offering a massive amount of coverage, adjustable arm length and two different lenses