What clothes do you use for mountain biking?

Hello everyone, my name is Laïa, I am Spanish (oops sorry if there are some spelling mistakes, please be indulgent :) I am in charge of developing all the clothing for mountain bikers.
My goal is to develop the best products for mountain biking. In order to meet your needs, I will need you!
The goal is to co-create together to allow you to have the maximum fun during your practice.
I will start by asking you very generic questions and we will refine as we go along.
First of all, a big thank you for your collaboration and contribution to the project.
Let's go!
Laia