Oakley Sutro Lite Prizm Transitions Cobalt Cycling Glasses

Sun, clouds, woodland, sun again, and so on – with the Oakley Sutro Lite Prizm Transitions Cobalt cycling glasses, you can ride anywhere without worrying about your vision. The lens automatically darkens as the ambient light gets brighter, and gets clearer again when you ride into the shade. At the same time, Prizm does what it always does, viz. enhance colours and contrast, so you will quickly spot potholes, branches and changes in road surface.

This is the question we are asked most often about photochromic Oakley glasses: “Do they have Prizm, or are they just standard photochromic lenses?” With these glasses, it is both. That is the big difference compared to earlier photochromic Sutro Lite versions, which do change transparency but lack Prizm contrast.

In full sunlight, the Cobalt lens transmits 13% of the light, which ranks it in category 3, just as dark as a standard sun lens for bright days. Thus, the Sutro Lite Prizm Transitions Cobalt glasses are perfect for cyclists who spend a lot of time in bright sunlight but also ride through shade, woodland or in overcast conditions – a long summer ride on a road bike, a gravel ride with open stretches, a cycling holiday in the mountains – these glasses are great for all of them.

The semi-rimless Sutro Lite frame in Matte White is made from O Matter, is available in width 133 mm, and fits helmet sizes M and L. If you have a narrower head or wear a size S helmet, take a look at the Oakley Sutro Lite S Photochromic with a 130 mm frame width.

Prefer a black frame? The Oakley Sutro Lite Prizm Transitions Ember model features the same technology on a Matte Black frame and darkens slightly less (15%) in full sunlight. Do you mainly ride your bike at dusk or early in the morning and want a lens that gets clearer? The Oakley Sutro Lite Photochromic, with 23 to 69% light transmittance, is the lighter option.

Prizm Transitions

"Prizm" adjusts the colours in your field of view so that details and contrast stand out more clearly. "Transitions" lets the lens adjust its degree of transparency to the ambient light: darker in the sun, lighter in the shade. Together, they give you that contrast in any light, without you having to stop to change lenses. Please note: How quickly and how dark the lens tints depends on UV radiation and temperature. On a cold, sunny day, it will generally darken more than on a hot summer’s afternoon.

O Matter frame

O Matter is Oakley’s lightweight and sturdy frame material. It flexes without breaking and stays comfortable throughout every ride, no matter how long.

Unobtainium nose pads and temples

The nose pads and the inside of the temples are made from Unobtainium, a material that becomes grippier when wet. So, the more you sweat, the better the glasses stay in place.

Compatible with:

• Helmet sizes M and L – the glasses' size is 133 mm (frame width 132.6 mm, lens height 58.3 mm, temple length 138 mm);
• Most face shapes – the glasses have a universal fit;
• Road cycling, gravel riding, mountain biking and running, especially if you spend a lot of time in the sun and also pass through shaded areas.

Not compatible with:

• Helmet size S and narrow faces – if this is you, take a look at the Sutro Lite S Photochromic (130 mm).
• Cycling in the dark – this is a photochromic lens that gets darker and lighter, not a clear lens.

Not sure? Here’s how to check:

• Look at the inside of the temple of your current Oakley glasses. If it says OO9463, you have a Sutro Lite model and this frame will fit exactly as you are used to. If it says OO9496, you have a Sutro Lite S model and these Sutro Lite Prizm Transitions Cobalt glasses are slightly wider.
• Check the label inside your helmet to see which size it is: M or L fits these glasses, S fits the Sutro Lite S.

Included as standard:

• Oakley Sutro Lite cycling glasses, Matte White frame, size 133 mm
• Prizm Transitions Cobalt lens (fitted)
• Storage pouch

Not included / still needed or useful:

• Hard case
• You can find more storage and maintenance options in our range of cycling glasses accessories.

• Do not leave the glasses in a hot car. Heat slows down the tinting process, and the lens prefers a cool place.
• If you notice that the lens isn’t darkening as much as you’d expect, know that this is normal on a hot day; photochromic lenses darken more in the cold than in the heat.
• If you take your glasses off whilst out and about, put them in the pouch provided. This will prevent scratches on the lens and keep the white frame looking awesome.