US Surplus BDU/Top Size
Sizing will be in standard US letter sizes. Whatever size your favorite tee shirt is in will do — Europeans and Asians may want to go down a size because our size system is a little bigger here thanks to our diet of high fructose corn syrup, wonder bread, processed country fried steak, and Coke® products.
For Length Sizes, here's what we reccomend based on your height:
Short: 63-67 inches (160-170cm)
Regular: 67-71 inches (170-180cm)
Long: 71-75 inches (180-190cm)