Yeah, I have the same situation, so I understand you perfectly. It is really important to protect yourself from ultraviolet radiation. And you can do this with the help of special pants that protect perfectly from the sun -https://pants.guru/best-sun-protection-upf-pants-thatll-guard-your-legs/
And they are all considered in this collection, so you can choose a specific option from there, especially considering the fact that all the links are already on the site and you dont have to surf the net in search of additional information.