The Importance of GSM and Coating in Paper Mailers
GSM and coatings: the two specifications that define paper mailing bag performance.
GSM explained
Quick answer
70-80gsm for lightweight clothing. 90-100gsm for standard items. 110gsm+ for heavy or sharp contents. Water-based coatings add moisture and scuff resistance without affecting recyclability. Plastic coatings add the strongest moisture barrier but prevent recycling. Choose the minimum GSM that protects your products and add water-based coating if moisture resistance matters.
Coating options
No moisture resistance. Fine for indoor delivery.
The best balance of protection and sustainability.
Not recyclable. Only for extreme moisture requirements.
Paper types: kraft vs recycled or full specifications.
How to choose
Specification guide0 / 3 checked
Paper bags in every GSM
Full specification range from ProcuraPack.
Browse paper mailing bagsFrequently asked questions
70-80gsm for lightweight. 90-100gsm for heavier garments.
Water-based for moisture resistance with recyclability. Uncoated for maximum eco credentials.
Yes, heavier paper adds weight to every bag.
Only for extreme moisture exposure where water-based is insufficient.
Water-based coated: yes. Plastic-coated: no.
Part of our guide
Product Guide: Paper Mailing Bags
Expert guides on paper mailing bags for sustainable, professional shipping.
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