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Choose 9x12 poly mailers to get ideal sizing for your apparel and retail items. They easily fit single shirts, t-shirts, pants, thin books, documents, and soft accessories without extra bulk. As a result, they take up a tiny fraction of the storage space, which enhances shipping efficiency. Get a free quote below to streamline your shipping process!
Rachel was fantastic to work with from start to finish. My design was brand new, and she played a huge role in helping bring my idea to life. She was ...
Date of experience:
August-22-2024
This is my first time ordering custom packaging for my small business and it has been game changing. I used to hand-make boxes for my products but cre...
Date of experience:
August-01-2024
The sales associate I worked with was fabulous. Always quick to respond and helped me problem solve our design. The folders I ordered are lovely and e...
Date of experience:
October-04-2024
my goodness, I am absolutely in love with my custom nail boxes ?? As a small business owner, seeing my vision come to life was so exciting, and OXO Pa...
Date of experience:
June-13-2024
The packaging exceeded my expectations. Everything was delivered on time, and the boxes looked amazing....
Date of experience:
April-05-2024
This was our 1st time ordering from OXO Packaging. From beginning to end, Daniel made the ordering process seamless. We received the boxes and they lo...
Date of experience:
December-15-2023
The final product was excellent. My rep, Daniel, was relentless about staying in touch with me. He replied with all the information I asked for immedi...
Date of experience:
May-19-2021
Customer service, pricing, design team, and final product were all excellent from start to finish. High quality printing as well....
Date of experience:
April-08-2024
Katie made the entire process of design and ordering a breeze! The finished product is beyond expectations! Definitely takes our soap business up seve...
Date of experience:
July-17-2025
ID 1772
Payment Methods
Keep soft goods or documents dry by choosing waterproof 9x12 poly mailers. Built from robust plastic layers (often 2.5 mil or thicker), these poly bags resist punctures and heavy stretching. Their flexible outer film absorbs impact and deflects sharp corners or edges without ripping open.
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Design
Get your custom boxes made in the required size, shape, and style.
Print
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Order any quantity, enjoy a wholesale price, pay no extra for die plates.
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Box Style |
9x12 Poly Mailers |
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Dimension (L + W + H) |
Standard 10"x13", 9"x12", 12"x15.5", Available in All Custom Sizes |
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Quantities |
1000 units |
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Stock |
LDPE, PP, HDPE, LLDPE, 1 mil, 2 mil, 3 mil, 5 mil |
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Printing |
No Printing, CMYK, CMYK + 1 PMS color, CMYK + 2 PMS colors |
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Finishing |
Gloss Lamination; Matte Lamination; Matte UV; Spot UV; Gold/Silver Foiling; Holographic Foiling; |
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Included Options |
Die cutting, Window cutting, Heat sealing |
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Additional Options |
Eco-Friendly; Recyclable |
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Proof |
Flat View, 3D Mock-up, Physical Sampling (On request) |
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Turnaround |
10 - 12 Business Days, RUSH order services within a week |
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Shipping |
FLAT |
Seal the best deal here by ordering poly mailers in bulk. OXO Packaging brings you bulk discounts if you place wholesale orders. For customization, grab a free quote with free shipping on the right side!
Instant Quote
Fill this form if you are not sure about the dimensions.
Made from tough polyethylene film, 9x12 poly mailers resist punctures, rips and scratches during rough handling and shipping. Provide tight bonding, closure, durability, and water and dirt resistance for your items with these mailers. No odor or smell lets in your packages due to their plastic resin composition. Soft goods fit flat comfortably within the 9x12 dimensions without straining seams.
9x12 poly mailers weigh only a few grams, keeping total package weights low, which reduce your shipping costs. Carriers charge extra for empty space in big shipping boxes (dimensional weight). However, poly mailers hug the item tightly to avoid this fee.
All in all, the 9 x 12 size of mailers is ideal for compact and lightweight items such as t-shirts, apparel, garments, books, documents, lifestyle accessories, fashion items, bandanas, and ecommerce goods.
Craft your poly mailers from materials that keep individual items safe and clean during shipping. Prevent your goods from bending or cracking while keeping them organized during knocks and bumps with these materials:
Give your shipping parcels a professional look by choosing functional styles. Ensure your chosen styles enhance user convenience and boost your brand reputation, such as:
Make your bag exterior exciting for buyers by leveraging printing options. Use custom Pantone shades like soft pinks, lavenders, or earthy tones that match your brand identity. Prevent smudging or rubbing off your printed surface with these premium options:
Attract modern buyers by applying tactile finishes on your poly mailers. Get a high-end, modern look by choosing the following finishes at OXO Packaging that make your printed colors, logos, or other branding elements vibrant:
Offer your customers a lightweight, waterproof shipping solution by delivering your items in 9x12 poly mailers. Whether you are a startup or an e-commerce business, investing in these mailers helps you boost brand awareness with efficient and cost-effective shipping! Contact us today and make your product shipping secure and stylish!
You can buy a 9x12 envelope locally in the United States at OXO Packaging, who offer free shipping for your bulk orders.
The largest standard stock poly mailer size is 24″ × 24″, though oversized and custom options can reach up to 30″ × 36″ for large textiles.
Great eco-friendly and structural alternatives to a poly mailer include Kraft Paper Mailers, Mailer Boxes, and Compostable Mailers.
Poly mailers are generally cheaper than boxes, costing 50% to 80% less per unit, weighing less for lower postage, and taking up much less storage space.
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I had a wonderful experience working with Jacob at OXO Packaging to get our Dad Joke Jerky beef jerky packaging designs printed. He worked closely wit...
Date of experience:
May-14-2024