These are an adult Men's 10/Women's 12 US size. Please do your own research regarding sizing up/down and the conversion to other. We are not able to offer any advice on fit nor sizing. Your item may be prepared for shipment same day but we typically drop off packages to the carrier on Wednesdays and Saturdays. Items purchased on Wednesday and Saturday may not be able to shipped same day depending on purchase time. Items purchased on the weekend will ship the next business day (excluding federal holidays).