the shirts are adult sizes and unisex..american apparel brand

small shirts are 19 inches across the bottom
medium shirts are 20 inches across the bottom

I do not know exactly when your order will arrive but I do ship them out as soon as I can. You can always email me asking what your order number is so you can track it, I will email you that as soon as I send it out. Or ask me via tumblr ask box :) thank you