I am hoping you can help. I am a teacher and am looking for a half slip with shorts type underwear so my fat thighs don’t rub together and so children don’t stair up my dress when they’re on the mat. Can anyone recommend something suitable? The shorts I was thinking would be snug fitting lycra with a non frilly slip over the top. A pattern would also work as I would have time to sew a set before school starts again.