SUNENDURANCELIGHT × PERFORMANCE
// TOOLS

Tools

Evidence-based calculators and assessments for managing light as a training variable.

I · II · III · IV · V · VI
// TOOL 01
10 QUESTIONS · 2 MIN

Fitzpatrick Skin Type

Estimate your skin's UV sensitivity — the starting point for managing UV as a training load.

OPEN TOOL
AVOIDERSEEKER
// TOOL 02
6 QUESTIONS · 1 MIN

Sun Avoider or Seeker?

Place yourself on the sun-exposure spectrum — modelled on the Lindqvist and Stevenson cohort methods.

OPEN TOOL
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// TOOL 03
INTERACTIVE MODEL

How much UV reaches you?

Model solar UVA, UVB and UVC at the surface — and how it changes by latitude and season.

OPEN TOOL
// GEAR

The kit behind the tools.

These calculators turn light into a training variable. Here's the reviewed gear to act on what they show — protect exposed skin, shield the eyes, and time your light.

SunGod Vulcans cycling sunglasses, matte black with smoke lensUK made
SunGod

Vulcans

British-made performance shades for road and trail — 100% UV protection and glare control for long days in the sun.

ProtectPerform
~£125at SunGod
Buy now →
Pelotan Sport Sunscreen SPF30
Pelotan

Sport Sunscreen SPF30

Sweat-proof sport sunscreen that doesn't impair thermoregulation.

ProtectPerform
~£30at Amazon
Buy now →
Luminette Luminette 3
Luminette

Luminette 3

The established light-therapy glasses.

ProtectPerform
~£189at Amazon
Buy now →

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