Sizing
What Size Bubble Mailer Do I Need?
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Mailers that are too big waste postage. Too small and seams pop. Use the cheat sheet below.
Sizing Table
| Mailer Size | Inner Dimensions | Best For |
|---|---|---|
| 6x9 | 5.5" x 8.5" | Video games, small electronics |
| 8.5x12 | 8" x 11.5" | Hoodies, small kits, plushies |
| 10x13 | 9.5" x 12.5" | Shoe boxes, bulk apparel |
Examples
- A Nintendo Switch game in a clamshell fits a 6x9 mailer snugly.
- Bubble-wrapped Funko Pops take a 10x13 with room for corner protectors.
Tips
- Measure the thickest part of the item after wrapping it in bubble wrap.
- Keep poly mailers nearby for items without fragile parts.
Recommended Options
Daily driver
6x9 Kraft Bubble Mailers
- Peel-and-seal strip holds even when boxes rub them in transit
- Interior bubble layer protects disc cases, games, and cables
Oversized merch
8.5x12 Poly Bubble Mailers
- Matte white exterior takes markers, labels, or stamps cleanly
- Extra width fits apparel or boxed collectables with padding
FAQ
How much room should I leave?
Leave half an inch of slack on each side so the seal lays flat and doesn’t pop when items shift.
Can I cut mailers down?
Yes, but seal the cut edge with a strip of packing tape so the bubble wrap stays intact.