We're almost certain Edward Cuming drew inspiration for this shirt's design from the tests for color blindness. So if you can see the subtle variations in color, congrats, you're not actually colorblind.
Made in Spain
Material
80% Lyocell
20% Nylon
Fabric
Printed Voile
Colour
Optical Scales / Khaki Brown
Care Instructions
Hand wash cold
Do not tumble dry
Dry flat in shade
Handle with care