We manufacture 1" foam coolers that are designed to fit within standard USPS Flat-Rate Boxes.

Simply pickup boxes from USPS.com and use our custom designed coolers to keep your perishables cold when in transit.

Order Foam Coolers for USPS Flat-Rate Boxes:
Part # Wall Cooler Inner Dimensions USPS Box Size Price Order Qty.
USPS-CLR-MED 1" 9" x 6.5" x 3.5" Medium $5.26
USPS-CLR-LRG 1" 10" x 10" x 3.5" Large $7.37
USPS-CLR-ZONEA 1" 8" x 5" x 3" Zone A $4.74
USPS-CLR-ZONEB 1" 10" x 8" x 3" Zone B $6.84