Eg07- New, Competition Polo Shirt, Short-Sleeved, white, IT 46 EU 42, MSRP $149
I'm not sure on sizing, but I found a chart online that said ~USA 10, but please see measurements to see if it would work for you, as I'm unsure on sizing!
New, but has been floating around the tack shop and is white, so may have some marks
*04752