In the early years of the event we would always include an event technical t-shirt in the entry fee and provided one for every finisher. 

There are a number of logistical difficulties in doing this. Some years the fashion was for tight fitting garments and we ran out of the smaller sizes. In another year the manufacturer provided t-shirts that were slightly smaller than usual (as it was perceived this was the trend) and we ran out of larger sizes. In order to ensure everyone got a t-shirt we would need to over-order and this resulted in 100's being left over. Although we did often give these away free of charge at our other events or give them to a charity or try to recyclable them the wastage of what is basically a plastic product seemed at odds with a growing movement to reduce plastic use. In 2019 we provided more expensive cotton t-shirts and many complained that they thought we'd done this to make more profit.  Of course, some don't want a free t-shirt and some don't like cotton or technical or the colour or....

In 2020 we made the decision to reduce the entry fee by the cost of an individual t-shirt and offer them as an extra instead, for those that wanted one.
A new member of the team now handles the on-line shop on this website. She also takes a small stock to the event to sell there. Of course, the t-shirts now cost more than the reduction in entry fee we made as we need to additionally pay for postage and packing, online payment processing and a reasonable rate for the time spent by the team member in dealing with the t-shirt orders. 

In 2021 we had one t-shirt left over only so feel the decision was justified in terms of wastage alone.  Participants can still have a memento t-shirt if they like, for the price that it costs us to provide it.