Who this is for
US sellers choosing an outer format for apparel, cosmetics, candles, or mixed handmade goods.
How we compared
Desk research of typical use cases, damage risk, appearance, packing speed, and dimensional-weight exposure. Not a lab drop test. Labels: Editorial standards.
When mailers win
Soft, non-fragile goods that must stay dry. Lower material cost and often lower billed size.
When boxes win
Rigid, liquid, glass, or stacked items. Easier void fill and gift presentation.
| Factor | Poly mailer | Corrugated box |
|---|---|---|
| Protection | Limited crush resistance | Better stacking and puncture resistance |
| Cost | Usually lower per unit | Higher material cost |
| DIM risk | Often lower profile | Higher if oversized |
Research date: September 8, 2026. Price both kits in packaging cost. If you choose corrugated, use box size. Other comparisons: comparison archive.