I am happy to combine shipping on orders made on the same day and mailed in same package, for an additional cost of $1.00 per pair of pants.
For shipping in the U.S., you can wait for me to invoice you with the discounted shipping cost, or if you pay full shipping prices for more than one item, I will refund you the difference. For shipping outside the U.S., I use the eBay global calculated shipping program. Thank you.