SBS Cardboard
Premium bleached substrate engineered for retail-ready packaging with sharp, high-resolution print performance across bulk SKUs.
Shipping bags carry parcels through sorting belts, vans, and doorsteps. They get dragged, stacked, bent, and sometimes soaked. A good bag stays closed, does not stretch open, and keeps labels readable. These bags are used for clothing, documents, and soft goods, where low weight, tough film, and dependable seals matter more than looks during shipping, handling, storage, and delivery cycles.
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Shipping bags don’t fail when they’re empty.
They fail once they’re loaded.
Corners stretch.
Seams split.
Adhesive peels early.
Most problems show up after the bag hits conveyor belts, sorting bins, and delivery vans. If the material is thin or the seal weak, damage starts fast. Unlike boxes, bags have no structure to hide mistakes.
Shipping bags have to survive friction, not impact.
Courier handling isn’t careful.
It’s quick.
Bags slide across belts.
They get dragged, stacked, twisted, and tossed.
Labels scrape. Edges catch. Moisture shows up without warning.
If a shipping bag stretches under load or opens slightly at the seal, the contents are exposed immediately. There’s no second layer of protection. That’s why shipping bags have to be tough at stress points, not just thick overall.
We don’t start with size charts.
First decision is material type.
Second is thickness.
Third is seal method.
Poly blends are chosen based on tear resistance, not cost. Seal width is adjusted so adhesive holds under tension. Bag length and width are set to limit excess space, because empty space causes drag and stress.
If a bag survives pulling tests and rough handling, it passes. If not, it gets reworked.
Different products demand different bag behavior.
Poly mailer bags are used for apparel and soft goods where flexibility matters. Bubble-lined shipping bags add cushioning for light protection without boxes. Tamper-evident shipping bags are designed to show interference immediately. Return-ready shipping bags include dual adhesive strips for reuse without resealing issues.
Each style exists to match handling reality, not convenience.
Material thickness controls stretch under load.
Seal width determines peel resistance.
Edge welding prevents split starts.
Surface texture affects conveyor friction.
Moisture resistance protects against rain and humidity.
Bag dimensions limit internal movement and stress.
These details decide whether the bag arrives sealed or half open.
Hello Custom Boxes supplies shipping bags to eCommerce brands and logistics-driven businesses shipping daily.
Our shipping bags are produced using approved materials selected for consistency and durability. Each batch is checked for seal strength and material uniformity before delivery.
This is packaging meant for transit, not display.
Failed shipping bags cost more than replacements.
They cause delays, refunds, customer complaints, and lost trust. A bag that opens mid-transit creates questions no brand wants to answer.
Strong shipping bags reduce delivery issues, protect contents, and keep fulfillment running without interruption. That reliability shows up directly in customer experience and operating costs.
We review what you’re shipping, how often, and through which carriers.
We recommend material and bag style based on handling conditions.
You approve specifications before production.
Bags are manufactured with checks on seal and material strength.
No surprises after fulfillment starts.
Shipping Bag Specifications |
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|---|---|
| Material Options | Polyethylene (PE), Low-Density Poly (LDPE), High-Density Poly (HDPE), Co-extruded plastic, Recycled plastic blends |
| Bag Types | Poly Mailers, Self-Sealing Shipping Bags, Tear-Resistant Mailers, Opaque Mailing Bags, Lightweight Courier Bags |
| Structural Features | Strong side seams, Pressure-sensitive self-adhesive strip, Tamper-evident sealing, Flexible form for non-fragile goods |
| Protection Features | Waterproof barrier, Tear and puncture resistance, Dust protection, Concealment for shipped items |
| Printing & Branding | Flexographic printing, Spot-color and CMYK printing, Logo branding, One-side or full-surface printing |
| Eco-Friendly Options | Recycled-content mailers, Lightweight material reduction, Recyclable plastic options, Reduced ink coverage designs |
| Sizes & Dimensions | Custom sizes available for apparel, documents, soft goods, accessories, and e-commerce fulfillment |
| Applications | E-commerce shipping, Apparel delivery, Courier services, Subscription shipping, Non-fragile product fulfillment |
| Wholesale & Bulk | Low MOQ options, Bulk pricing available, Consistent thickness control, Wholesale supply for online retailers |
Simple, practical, and built around real B2B production needs.
Send product size, quantity, material preference, artwork, and delivery details.
Our team prepares a proof or 3D mockup so you can check design and structure.
Once approved, your packaging moves into printing, cutting, finishing, and packing.
Finished boxes are packed and shipped to your warehouse, retailer, or 3PL.
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