FWIW I prefer natural cotton because it absorbs more than artificial fibres. Despite protestations of a friend who insists artificial fibres wick faster.
Yes faster, but in a hot hall where is the evaporation/cooling? And how much can they hold? Give me 64 red cotton T-Shirts than a handfull of artificial frippery. And that is not enough for 8 days at Sidmouth.
When I remove them they end up inside out, and that is how they get washed & dried. It tells me, at a glance, which have been worn and reduces fading on the correct side when drying in the sun.