Shipping and packaging guides
Straight answers from a factory that has made flexible packaging since 1996.
Poly mailer stock for the holiday peakSize your poly mailer stock for Black Friday through Christmas: peak usage, reorder point, safety stock and the USPS dates that matter in 2026.USPS DIM divisor 139 and poly mailersSince July 12, 2026 USPS divides by 139, not 166, and rounds every dimension up. Which packages pay more, and why soft goods in poly mailers mostly don't.
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We reply within one business day with sizes, mil and a delivered price.
- Free sample kit shipped to your US address
- Delivered prices, DAP to your door
- Orders from one pallet, mixed sizes welcome
- Plain, printed with your brand, or fully neutral
- Meet in person in January–February 2027
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