overseas first class postage refers to international mailing using services like USPS First-Class Package International Service (FCPIS), which allows individuals and small businesses to send lightweight packages abroad economically. This service is best for shipments under 4 lbs and includes basic tracking to select destinations. Delivery times vary by country, typically ranging from 7 to 21 days. Overseas first class postage is a preferred option for non-urgent shipments like apparel, small electronics, or personal gifts. It’s essential to complete customs declarations properly and include accurate descriptions and values to avoid delays or fines. While this method is cost-effective, it doesn’t include delivery guarantees or advanced tracking features like express services. For sellers looking to minimize shipping expenses while still offering international options, overseas first class postage provides a reliable solution. Understanding postage classes helps balance cost, speed, and customer expectations for cross-border ecommerce.