Custom sewing is never refundable.  This pertains to any clothing or tent modifications. Any custom order requires a one time modification to the pattern. It means we have to stop and cut out just one item. A sewing machine operator has to stop what she is working on and sew up just one item. This process slows down the general operations of the factory. We normally make all products in small batches.  They are not 'made to order' thus, even shortening pants or sleeves or eliminating the pockets from a jacket involves extra labor and time. Modifying a pattern is much more involved than just adding to, or shortening, the hem.