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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!
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Quality of the product was outstanding and we loved the result! We had a small mismatch with one of the images on the boxes but Jason was great at und...
Date of experience:
August-22-2024
Katie is a rockstar! She has ensured an easy ordering process and the custom boxes I ordered are perfect. Customers love the quality....
Date of experience:
August-01-2024
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:
October-04-2024
Our company had been looking for new packaging for one of our products for quite a while. I am so glad we came upon OXO Packaging. From the start, the...
Date of experience:
June-13-2024
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Great service once I placed order. James worked very diligently for meeting the timeline. The process was transparent as far as shipping was concerned...
Date of experience:
April-05-2024
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We hired Oxo Packaging to design several of our product boxes & labeling and what a great decision that turned out to be not only did they provide gre...
Date of experience:
December-15-2023
My experience with oxo packaging has been awesome. They are responsive and prompt and my boxes are perfect. Thank you to Ross Morgan my packaging cons...
Date of experience:
May-19-2021
i have been in business for 5 years and always thought it would be to expensive to have small batch boxes made. Surprise Surprise, a member from my so...
Date of experience:
April-08-2024
OXO Packaging, especially Harry was an excellent decision. I went from not knowing what I wanted to go with to understanding all of my options and pla...
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.
More Than +5000 Satisfied Clients Worldwide
Design
Get your custom boxes made in the required size, shape, and style.
Print
Upload your artwork and get it superbly printed the way you want.
Get it done
Order any quantity, enjoy a wholesale price, pay no extra for die plates.
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Box Style |
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 |
No Minimum Order Required |
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Stock |
LDPE / HDPE Co-Ex Poly Film, 2.5 mil, 3 mil, 4.5 mil thickness; Biodegradable & Recycled (PCR) Poly available |
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Printing |
Flexographic Printing (1–4 colors), Digital Printing, No Printing (Plain) |
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Finishing |
Matte Film, Glossy Film, Metallic/Solid Color Film |
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Included Options |
Self-Seal Adhesive Strip, Tear Strip, Double-Sided Seal (for returns) |
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Additional Options |
Bubble-Lined (padded), Biodegradable/Compostable Poly, Recycled Poly (PCR), Reinforced Corners, Custom Colors |
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Proof |
Flat View, 3D Mock-up, Physical Sampling (On request) |
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Turnaround |
4 - 8 Business Days, RUSH |
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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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lets build something great together.
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Rachel has been a delight to work with from start to finish, responding to my many questions and requests. She worked well with my graphic designer to...
Date of experience:
May-14-2024