Duxbak Khaki Safari Short Sleeve Shirt
Men's Medium
Pockets 
CB96A

Measurements:
Armpit to Armpit - 23.5"
Length - 26"

I will reduce shipping costs for multiple purchases paid with one payment.  There is no formula.  I will charge what it costs me to ship it to you.  If you make a multiple purchase, please wait to make payment until I send you an invoice for the combined purchase.