Why Do the World's Largest Shippers Use 4x6 Labels? A New E-Commerce Startup Has the Answer — and the Solution

Why do shipping giants like Amazon, UPS, FedEx, USPS, and DHL all rely on one specific size for their shipping labels?
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Why Do the World's Largest Shippers Use 4x6 Labels? A New E-Commerce Startup Has the Answer — and the Solution

JACKSONVILLE, Fla., October 09, 2025--(BUSINESS WIRE)--Why do shipping giants like Amazon, UPS, FedEx, USPS, and DHL all rely on one specific size for their shipping labels? The answer lies in ...