Vulcans
British-made performance shades for road and trail — 100% UV protection and glare control for long days in the sun.
~£125
Buy now → // 03 · THE SUN
UV Exposure
Sun, UV load and heat — training hard outdoors without paying for it.
Endurance athletes accumulate more UV than almost anyone. That dose has an upside (nitric oxide, vitamin D, mood) and a real cost (skin damage, eye strain, heat load). The goal is not to hide from the sun — it is to manage the dose across a season.
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Key reading
Start here.
The Science · 7 min read
What Is Minimal Erythema Dose (MED)? The Science Behind Sunburn and UV Exposure
Minimal Erythema Dose (MED) is your personal sunburn threshold — the lowest UV dose that produces visible skin redness. Here's how it's measured, why it differs between people, and why it is not the same as getting "enough" sun.
05 JUL 2026
The Science · 6 min read
Does UVA light improve cycling performance? A closely-read verdict
A controlled trial in trained cyclists is often cited as evidence that sunlight boosts performance. Read carefully, it shows something more interesting — and more honest.
21 JUN 2026
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The kit that fits
Reviewed for this topic.
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See it in the field
How the pros use it.
The Science
Does Erling Haaland wear blue light glasses?
Erling Haaland wears blue-blocking glasses every night and calls sleep the most important thing in the world. Here is what he actually does — and whether the glasses deserve any of the credit.
The Science
Why do footballers wear blue light blocking glasses
Marcos Llorente played 26 straight matches in tinted glasses, and Erling Haaland publicly backed him. The story sits in a more interesting place than either the hype or the backlash admits — here is what the evidence actually shows.
Load
Why Esteban Ocon's Sunglasses Matter — and How Tom Clark Turned That Insight Into Phaze
Esteban Ocon's paddock sunglasses look like style, but they're the visible tip of a circadian performance system built around controlling light exposure — the same science coach Tom Clark has now productized into Phaze.
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