A/B Box Liners. Our foil box liners for USPS Flat-Rate Boxes come as a kit to make 25 thermally shielded shipping containers. The kit contains 25 pairs of foil designed to fit USPS Flat-Rate boxes.

Simply pickup boxes from USPS.com and use our custom-cut foil to keep your perishables cool when in transit.

Order Foil Box Liners for USPS Flat-Rate Boxes:
Part # USPS Box Size Set Qty. Price Order Qty.
USPS-FOIL-MED Medium (11" x 8.5" x 5.5") 25 $36.84
USPS-FOIL-LRG Large (12" x 12" x 5.5") 25 $52.63
USPS-FOIL-ZONE-A Zone A 25 $36.84
USPS-FOIL-ZONE-B Zone B 25 $52.63