Originally Posted by ~*~anebel~*~
Riding into a lesson with any dressage instructor with your midriff showing and in jeans is a huuge nono. Technically speaking, you should be in a collared shirt with sleeves and breeches, as this attire shows respect and allows you to ride comfortably.
Agree with you Anebel with this too, most of the coaches I have ridden with have found it extremely rude if a student shows up wearing inappropriate attire. I find it more comfortable anyway, to ride in breeches and a polo shirt, you can move in it and nothing rubs, etc. so you can concentrate on riding rather than pulling tops down or jeans up