Businesses today are looking for packaging that protects their products and represents their brand. Custom poly mailing bags have become a smart choice for those wanting a simple and cost-effective way to ship items while still presenting a professional image.
The most popular sizes and styles for branded poly mailing bags for shipping help meet both business needs and customer expectations. Companies can select different thicknesses, colors, and closure options to match their shipping requirements. These custom poly mailing bags are ideal for e-commerce and retail businesses wanting to make a strong first impression.
1) 6×9 inches – Small poly mailer for lightweight or compact items
The 6×9-inch poly mailer is a common size for shipping smaller goods. It works well for items such as jewelry, crafting supplies, or accessories. These bags are lightweight, easy to use, and save on postage compared to larger materials.
This size is popular because it helps keep contents secure without using too much material. The self-sealing strip makes packing quick and reduces the need for extra tape.
Small poly mailers keep contents protected from dirt and moisture. They are often picked for shipping items that do not require a lot of padding. Many find that 6×9-inch bags are a simple solution when mailing low-bulk products.
2) 9×12 inches – Medium size for clothing and small accessories
The 9×12 inch poly mailing bag is a medium size that works well for shipping clothing items like t-shirts, kids’ clothing, and light tops. It also fits small accessories such as belts, scarves, or fashion jewelry.
This size is easy to pack and helps protect items from moisture and dust during transit. The bag can fit most items that are not too bulky or thick, making it a versatile option for many online sellers.
Many choose this size for its balance between space and convenience. Clothes are less likely to arrive wrinkled, and the package stays neat. For people mailing gifts or goods in the apparel and accessory category, 9×12-inch mailing bags can be used for both individual and small bundled orders.
3) 12×15.5 inches – Popular for larger apparel and soft goods
The 12×15.5-inch poly mailer is a common choice for shipping bigger clothing items like sweaters, jackets, or multiple shirts at once. This size also works well for items such as backpacks, soft toys, and folded blankets.
Its dimensions give enough space for bulkier or bundled goods that would not fit in smaller mailers. The extra room helps protect items from getting wrinkled or squeezed too tightly during transit.
Many people use this size because it balances mailing efficiency and cost. It is light, easy to seal, and provides a clean look for shipments. This makes it very popular for e-commerce clothing and accessory stores looking to keep things simple in their packing process.
Poly mailers of this size are also waterproof and tear-resistant, which helps protect soft goods if handled roughly during shipping or exposed to moisture.
4) 14.5×19 inches – Ideal for bulkier garments and textiles
The 14.5×19-inch poly mailing bag is commonly chosen for mailing larger or heavier items. It has a flat, spacious design that holds sweaters, hoodies, jackets, or several pieces of clothing.
This size works well for items like bedding, towels, and bulkier textiles that do not fit comfortably in smaller mailers. The bag’s material helps protect contents from tears or moisture in transit.
The inner surface is often lined in a way that stops others from seeing inside the package. This supports privacy for the sender and receiver. Poly bags in this size give businesses a useful way to ship harder-to-pack products safely and with less wasted space.
5) 24×24 inches – Extra-large size for oversized products
The 24×24 inch poly mailing bag is popular for shipping big or bulky items. It fits products like jackets, bedding, backpacks, or large stacks of clothing. Many people use this size when smaller bags do not offer enough space.
This extra-large size is often chosen because it handles soft and flexible items that are too large for regular mailers. Goods like comforters and winter gear are common products shipped in these bags.
The sealing function on these bags is usually strong, helping to keep contents safe from dirt and moisture during transport. They are lightweight but still provide a firm layer of protection. This helps keep shipping costs lower compared to shipping boxes of a similar size.
This size is available in packs, so it is easy to store and use for daily shipping needs. The flexible material also allows for some stretching to fit odd-shaped items.
6) Bubbled poly mailers – Added cushioning for fragile shipments
Bubbled poly mailers are designed with a padded layer inside. This layer is made from small air bubbles that help protect fragile items during shipment. The bubbles act as a soft cushion and help absorb impacts from handling or drops.
These mailers have a lightweight and flexible outer shell. They also provide a moisture barrier, which helps keep contents dry and safe during transit. The adhesive strip on the flap offers a tight seal without the need for extra tape.
Common sizes are available to fit small electronics, accessories, or cosmetics. These bags make it easier to mail breakable or delicate products without using extra packing materials. They save time for the sender and offer a quick, easy packing process.
Conclusion
Popular custom poly mailing bag sizes include 6″ x 9″, 9″ x 12″, 10″ x 13″, and 14.5″ x 19″. These fit a wide range of products, from small accessories to large clothing items.
Common styles are standard flat mailers, expansion mailers with gussets, and bags with extra features like self-seal strips.
Choosing the right size and style keeps items safe and shipping smooth.
Selecting a snug fit and considering product needs will help create a better shipping experience for both sellers and buyers.