Hi there , I am answering your questions about the straps around the legs...they are called garter straps/jodphurs straps. This is a young rider who wears jods and paddock boots and the straps go around the riders calves to prevent the jods from riding up on the leg while riding . Hope this helps : )

can i ask a question? in your avatar photo, what are them things arund your knees? i have seen them in american books and that i just dont know what they do lol