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Courier Bags for Every Business

In-Stock Plain White Mailers & Custom Branded Courier Bags

Courier bags, also known as poly mailers, have become a preferred choice for shipping everything from apparel and accessories to jewelry and small electronics. Their lightweight, puncture-resistant, and waterproof design helps cut shipping costs, while the choice of full customization makes them ideal for brand-focused businesses.

At Gertex, we offer always-in-stock Plain White Mailers for quick turnaround or fully customizable courier bags tailored to your needs. Choose your ideal size, colour, branding, and smart features like double adhesive strips or tear perforations. We also offer free samples, so you can test the size, strength, and features before placing an order, no guesswork, no compromises.

In-Stock Plain White Mailers & Custom Branded Courier Bags

Samples available on all our courier bags.

Plain White Mailers – Always In-Stock

Our Plain White Mailers are in-stock and ready to ship every day. Durable, lightweight, and cost-effective, they’re the go-to choice for businesses that need reliable packaging without the wait.

Always Available

Ship with confidence knowing your go-to mailers are ready when you are.

Puncture Resistant 2.5 MIL

Made with durable 2.5 MIL material to protect sharp or heavy items and ensure your package stays intact during transit.

Easy to Use

Unbranded for quick labelling and a clean, professional look.

Six Core Sizes

Available in six stock sizes to suit everything from documents to larger orders.

Core Sizes Available

Select from our range of stock sizes, all available for immediate order. Need a different size? Contact us to learn more.

Reference No.	Width	Length	Bags Per Case
A18108	24"	24"	200
A20229	19"	24"	200
A20204	12"	15 - 1/2"	500
A20249	14 - 1/2"	19"	500
A20238	10"	13"	1000
A20274	9"	12"	1000

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Stand Out with Custom Courier Bags

Want your brand to stand out? Go beyond plain white mailers with our fully customizable courier bags built to impress. Choose your ideal size, colour, and full branding to create a packaging experience your customers will remember. Add smart features like double adhesive strips for resealability or tear strips for frustration-free opening. Whether you're boosting brand recognition or making returns easier, our custom bags combine form, function, and impact.

Design your ideal Courier Bag by choosing from these customizable options:

COLOURED MAILERS

Choose from a wide range of solid or patterned colours to match your packaging or branding needs.

PRINTED MAILERS

Fully customizable with logos, graphics, and messaging for brand visibility and a professional look.

Multiple different sizes of courier bags offered.

CUSTOM SIZES

Customize your courier bag size to match your packaging/shipping needs.

Double Adhesive Strips on all of our courier bags.

ADHESIVE CUSTOMIZATIONS

Add double adhesive strips to your custom courier bags for secure resealing, ideal for eCommerce returns and repeat use.

TEAR STRIPS

Add tear strips to your custom courier bags for quick, hassle-free opening, perfect for improving the unboxing experience and simplifying returns.

Choose the right Courier Bag for you

Proper packaging makes all the difference. It protects your products, reduces damage, and saves time and costs. We understand that every business has unique needs;, that’s why we offer tailored packaging solutions and programs designed to improve efficiency across your operation. Request a quote and we can take care of the rest.

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What Courier Bags Are Used For

Documents
Books and Magazines
Clothing
Small Electronics
Cosmetics and Personal Care Products
Pharmaceutical Samples & Medical Supplies
Jewelry & Accessories
Samples and Promotional Materials
Stationery & Office Supplies
Retail E-commerce Orders
Toys & Collectibles
Lightweight Products

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Always In Stock. Always On Time.

Innovate Your Shipping with Gertex Courier Bags

Save on Shipping

Save money on shipping with our lightweight courier bags. Their minimal weight reduces postage costs, making them a cheaper option for sending parcels. They are durable yet light, and ensure that all packages are secure without adding unnecessary weight or expense.

Keep your Products Safe

Courier bags are extremely strong and have tamper-resistant features, ensuring the secure transportation of items. They include durable materials and secure closures, preventing unauthorized access and safeguarding contents against potential damage or theft during transit.

Lower your Carbon Footprint

Gertex courier bags are made from 60% recyclable materials with non-toxic, water-resistant coatings. We offer poly mailers that don't have the white foam, a non-recyclable material used by others. Also, FSC® Certification is available upon request.

Samples Available

We offer free samples of our courier bags so you can test the size, strength, and features before placing an order. This ensures you get exactly what you need, no guesswork or compromises. There’s also no large upfront investment required.

Courier Bags – Frequently Asked Questions

Plain White Mailers: There is no minimum order quantity, making them a flexible and cost-effective option whether you need a handful or a high-volume supply.

Customized Courier Bags: Our minimum order quantity is 150 cases. For testing and validation, we offer low-quantity runs and free samples. To ensure stock availability and the best pricing, we recommend placing orders 3–4 months in advance.

Request a free sample by contacting us. We'll work with you to start customizing the perfect courier bag for your needs.

Reach out and call us today at (416) 398-7408 or click here to fill out our contact form.

Yes. We can custom print courier bags with your logo, branding, colours, promotional messaging, return information, QR codes, and more to create a professional unboxing experience and strengthen brand recognition.

Yes. Our courier bags are made from 60% recyclable materials, with no white foam or toxic coatings. FSC® certification is available upon request, and we use eco-conscious inks and responsibly sourced materials.

Our plain white mailers are always in stock and ready to ship immediately. For custom-printed courier mailers, lead times are approximately 10–12 weeks from final artwork approval and pre-production sample sign-off. This timeline includes both production and delivery of the finished goods.

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