Wholesale Direct — Small Business Pricing

Heavy-Duty Poly Mailers
Built for Businesses That Ship Daily

4 Mil waterproof self-seal bags in 5 sizes. No minimums on first order. Ships same day from Fullerton, CA. Trusted by growing eCommerce sellers and boutique owners.

4 Mil Thick waterproof film

10 lb Max weight rating

5 sizes Small to XL

Same day Ships from CA

📦 200 / 500 / 1,000 pcs packs

🔒 Self-seal peel & stick closure

💧 100% waterproof outer surface

🚚 Free shipping on orders $30+

Choose Your Size & Quantity

All bags: 4 Mil · Self-seal · Waterproof · Up to 10 lbs · Select quantity below each size

Heavy Duty Self Seal Poly Mailer Flat Bags Waterproof 4 Mil up to 10 Pound 11.75"(30cm) x 15.5"(39.5cm) 1000pcs

Large Poly Mailer — 11.75" × 15.5"

4 Mil · Self-seal · Waterproof · Up to 10 lbs
Best for folded clothing, shoes, medium goods

Select Quantity:

$69.99

Heavy Duty Self Seal Poly Mailer Flat Bags Waterproof 4 Mil up to 10 Pound 11.75"(30cm) x 15.5"(39.5cm) 200pcs

Large Poly Mailer — 11.75" × 15.5"

4 Mil · Self-seal · Waterproof · Up to 10 lbs
Best for folded clothing, shoes, medium goods

Select Quantity:

$19.99

Heavy Duty Self Seal Poly Mailer Flat Bags Waterproof 4 Mil up to 10 Pound 11.75"(30cm) x 15.5"(39.5cm) 500pcs

Large Poly Mailer — 11.75" × 15.5"

4 Mil · Self-seal · Waterproof · Up to 10 lbs
Best for folded clothing, shoes, medium goods

Select Quantity:

$39.99

Best Seller Heavy Duty Self Seal Poly Mailer Flat Bags Waterproof 4 Mil up to 10 Pound 15"(38cm) x 18.75"(47.7cm) 1000pcs

XL Poly Mailer — 15" × 18.75"

4 Mil · Self-seal · Waterproof · Up to 10 lbs
Best for apparel, bulky items, clothing bundles

Select Quantity:

$139.99

Best Seller Heavy Duty Self Seal Poly Mailer Flat Bags Waterproof 4 Mil up to 10 Pound 15"(38cm) x 18.75"(47.7cm) 200pcs

XL Poly Mailer — 15" × 18.75"

4 Mil · Self-seal · Waterproof · Up to 10 lbs
Best for apparel, bulky items, clothing bundles

Select Quantity:

$29.99

Best Seller Heavy Duty Self Seal Poly Mailer Flat Bags Waterproof 4 Mil up to 10 Pound 15"(38cm) x 18.75"(47.7cm) 500pcs

XL Poly Mailer — 15" × 18.75"

4 Mil · Self-seal · Waterproof · Up to 10 lbs
Best for apparel, bulky items, clothing bundles

Select Quantity:

$69.99

Heavy Duty Self Seal Poly Mailer Flat Bags Waterproof 4 Mil up to 10 Pound 6"(15cm) x 8"(20cm) 1000pcs

Small Poly Mailer — 6" × 8"

4 Mil · Self-seal · Waterproof · Up to 10 lbs
Best for small gifts, documents, samples

Select Quantity:

$34.99

Heavy Duty Self Seal Poly Mailer Flat Bags Waterproof 4 Mil up to 10 Pound 6"(15cm) x 8"(20cm) 200pcs

Small Poly Mailer — 6" × 8"

4 Mil · Self-seal · Waterproof · Up to 10 lbs
Best for small gifts, documents, samples

Select Quantity:

$9.99

Heavy Duty Self Seal Poly Mailer Flat Bags Waterproof 4 Mil up to 10 Pound 6"(15cm) x 8"(20cm) 500pcs

Small Poly Mailer — 6" × 8"

4 Mil · Self-seal · Waterproof · Up to 10 lbs
Best for small gifts, documents, samples

Select Quantity:

$19.99