Are thermal poly mailers good for delicate apparel trims?

Yes, but add foam neck forms and test snap strength after a 6-hour heat soak.

What size thermal mailer fits folded athletic sets?

A 12x15.5 mailer handles leggings plus hoodie; size up if you add branded tissue.

Expect 4-6 hours under 90°F ambient when you pair them with a 200g gel pack.

Yes, but insist on digital CMYK with matte overlam; foil inks crack on bubble foil.

Most factories demand 2,000 units; RemaPak let me trial 500 after I prepaid tooling.

Poly Mailers

✍️ Sarah Chen 📅 April 5, 2026 📖 0 min read 📊 9 words

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