Custom Mailers Blog
Expert insights on custom bubble mailers, poly mailers, paper mailers, and e-commerce packaging strategies to grow your brand.
Why Do Mailer Seals Fail?
Poly mailer seal keeps opening? Check fit and closure stress, strip contact and packing process first, then know when to escalate to your supplier.
Are Bubble Mailers Protective Enough?
Before a bulk order, check whether a bubble mailer protects your actual packed SKU: fit, bending, corners, movement, closure and presentation.
Custom Mailer Size Guide
Learn how to choose the right custom mailer size by measuring product length, width, thickness, usable space, and material fit for poly, bubble, and paper mailers.
Return-Ready Mailers: What Buyers Should Check
When ecommerce buyers need return-ready mailers, what to check on dual-seal structures, tear strips and label placement, and how to validate the sample before bulk production.
Bubble Mailer vs Box: When Cushioning Is Not Enough
Many packaging decisions start with a simple assumption: if a product is small and light, a bubble mailer should be enough. That assumption holds for some SKUs and fails quietly for others. A compact item can still arrive bent, cracked at a corner, or scuffed by another product in the same order. The bubble mailer […]
Poly Mailer Thickness Guide: What Buyers Should Check Before Bulk Ordering
Film thickness is one of the shortest lines on a poly mailer quotation and one of the easiest to misread. It describes the plastic film the mailer is made from — not the depth of the product being packed into it, which is a sizing question answered separately. The practical difficulty shows up in comparison. […]
When to Reorder Custom Mailers: A Reorder Point Guide for Packaging Buyers
A pallet of custom mailers in the racking is not the same thing as inventory coverage. A stock count answers “how many do we have?” — which is rarely the question that decides whether the next purchase order is already late. The replenishment question is different: will the mailers you hold today cover demand until […]
Paper Mailer GSM Guide: What Buyers Should Check Before Bulk Ordering
GSM is usually the first material figure on a paper mailer quotation, and for many packaging buyers it quietly becomes the only one that gets compared. Supplier A quotes 100 GSM. Supplier B quotes 120 GSM. The higher number looks like the safer purchase, the line item gets approved, and the specification review ends there. […]
USPS, UPS & FedEx Poly Mailer Requirements
For an ecommerce packaging buyer, carrier rules belong inside the packaging specification before bulk ordering — not in a troubleshooting conversation weeks after the first pallet has shipped. USPS, UPS and FedEx all move shipments in flexible mailers every day. What they do not share is one set of rules for them: each carrier describes […]
Digital Proof vs Physical Sample for Custom Mailers: What Buyers Should Check
The mailer type is chosen, the specification is agreed and the artwork is submitted. Then the proof arrives, and with it the last decision before money is committed to a production run: does this digital proof give you enough information to release bulk production, or is there still something that has to be checked physically? […]
12 Questions to Ask Before Ordering Custom Mailers
A 12-question supplier checklist for buyers preparing a custom mailer order: MOQ, sizing, printing, setup fees, proofs, lead times, freight, quality and reorders.
Kraft vs Poly Bubble Mailers: Durability, Cost & Best Uses Compared
How kraft and poly bubble mailers compare on durability, moisture resistance, weight, printing, cost and recycling, plus which products suit each.