It's because the USPS is subsidizing the cost of that shipment. "The Postal Service is losing millions a year to help you buy cheap stuff from China" https://w

It's because the USPS is subsidizing the cost of that shipment. "The Postal Service is losing millions a year to help you buy cheap stuff from China" https://www.washingtonpost.com/news/storyline/wp/2014/09/12/the-postal-service-is-losing-millions-a-year-to-help-you-buy-cheap-stuff-from-china/ https://www.washingtonpost.com/news/storyline/wp/2014/09/12/...