Easy fit and good coverage with versatile photochromic lenses

Thanks to their photochromic lenses, the zerorh+ Stylus Performa glasses provide great winter eye protection.

With changeable conditions, glasses can be a key item of your attire. They can keep grit, rain and most other things out of your eyes. Generally the only struggle you're likely to have is they are a bit more prone to misting up when matters get a little steamy.

The zerorh+ Stylus Performa glasses are quite a revelation. On first appearance they don't look the most robust pair of classes you'll come across. The arms are quite thin and the frame looks slender but the most obvious factor is how flexible the whole package is. The frame itself and the lenses offer a fair degree of flex. The reasoning behind this is to offer greater protection in the event of any impact. The zerorh+ glasses are guaranteed to be shatterproof for life; quite a statement.

Even in the less-than-ideal conditions being served up in the UK during the winter the most impressive feature of these Italian glasses is the photochromic lenses. I haven't noticed any hindrance to my vision regardless of the light. The changing properties of the lens which allow them to automatically adapt to the conditions are impressive. At no time have I had to remove them because I was struggling to see.

Zerorh+ says they have a transmission index between 18% and 43% - that's the amount of light allowed through. There's also a version with a DayNite lens with a transmission range of 83% to 22% for gloomier conditions. Lenses for very bright conditions have transmission indices of 10-15%, but they're intended for situations like deserts and sunshine on snow, so these should be fine in a British summer.

With the current lack of daylight you wouldn't think you would have need of eyewear but they offer a lot of protection. The heavy rain of recent weeks creates additional hazards; grit as well as rain can cause you uncomfortable moments.

These glasses are comfortable and light when in place. The flexibility offered by the frame ensures there is no tension on the side of the head. The nose clip sits comfortably on the bridge of your nose and the overall lightness allows you almost forget they are there. Even indoors at low light you could forget they are in place.

The arms are slightly unusual in that they have no grips to keep them in place. The way the RH+ glasses compensate for this is the curved shape. The least flexible part is this end piece of the arms. When you're on the bike this helps to keep them in place and stop any slippage when you move your head.

The lenses offer broad coverage with no obvious blindspots. They are kept in place with two small screws which allow for plenty of movement and should minimise difficulties in making them fit. Head size shouldn't affect the fit.

Cleaning is simple. A little fluid and a microfibre cloth and any unwanted grime is soon removed. The white frame on the test pair might not be to everybody's liking but they should be won over by the fit and performance; you can also get them in black anyway.

You would expect a top quality pair of glasses for this much money and on the whole that is what you get. Some might point out that you cannot changes lenses. That's a fair point but I found the RH+ coped fine with low light levels. It will be interesting to try them again in the height of summer and see how they cope with brighter sunshine.


The zerorh+ Stylus Performa glasses have proved adept at keeping flying obstructions out of my eyes while allowing plenty of light through. The flexible frame makes for an easy fit. Despite their adaptability, the lack of an interchangeable lenses could hinder them in brighter light.


Easy fit and good coverage with versatile photochromic lenses.

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road.cc test report

Make and model: ZeroRH+ Stylus Performa Sunglasses

Size tested: White

Tell us what the product is for, and who it's aimed at. What do the manufacturers say about it? How does that compare to your own feelings about it?

A decent fitting set of lenses that have a decent frame and provide plenty of clear visibility. There were no issues with the comfort provided but the real test lies ahead when the light of spring/summer gets sharper.

Rate the product for quality of construction:

The frame is well made with plenty of flex to allow for a good fit.

Rate the product for performance:

A lack of testing in proper sunlight would necessitate less than full marks for performance. If the RH+ glasses cope well in brighter conditions, it would make them a winner.

Rate the product for durability:

The flex in both frame and lenses augur well for a durable, long lasting set.

Rate the product for weight, if applicable:

Due to the lightweight materials the overall feel is one of lack of load when you wear them.

Rate the product for comfort, if applicable:

The arms are slender and do not cause discomfort or tension on the side of the head and the nose pieces allow them to sit on the bridge of your nose without feeling heavy.

Rate the product for value:

For £120 these are not a run of the mill pair of glasses. The fit, feel and performance hint at something of real value. The only missing piece is the ability to change lenses easily but this may not be necessary.

Tell us how the product performed overall when used for its designed purpose

Ticks all the boxes you would expect from a set of glasses costing over one hundred pounds. They look good into the mix the only unknown factor is their performance in brighter sunlight.

Tell us what you particularly liked about the product

Fit, comfort and performance in low level light make these glasses a useful addition in these dreary months.

Tell us what you particularly disliked about the product

At first I thought the lack of grips on the arms would allow them to slip off too easily but there was no problem with this. The glasses were stable and stayed in place.

Did you enjoy using the product? Yes, they fitted well and coped with the conditions well.

Would you consider buying the product? I would if I was in the market for a light, robust pair of glasses.

Would you recommend the product to a friend? Yes.

Anything further to say about the product in conclusion?

The only unknown factor is their performance when the sunlight gets brighter and more changeable.

Overall rating: 8/10

About the tester

Age: 45  Height: 178cm  Weight: 80kg

I usually ride: Currently riding a Pinnacle Evaporite Three  My best bike is: As above

I've been riding for: Under 5 years  I ride: Every day  I would class myself as: Experienced

I regularly do the following types of riding: road racing, commuting, sportives, mtb, Not yet but looking to dip my toe in the world of TT