These blue mailing bags provide reliable protection for shipping documents, apparel, and general goods. Manufactured from durable LDPE with a thickness of 55–60 microns (220–240 gauge), they offer exceptional resistance against tears, punctures, and water while remaining extremely lightweight to help reduce postage costs.
Each bag features an opaque dark inner layer for complete document confidentiality and privacy during transit. The secure peel-and-seal self-adhesive strip ensures fast, tamper-evident closure, making packing efficient and dependable.
Key Features
Material
LDPE (Low-Density Polyethylene)
Thickness
55–60 Microns (220–240 Gauge)
Dimensions
22.9 x 30.5 cm (230 x 305 mm)
Closure Type
Peel & Seal Self-Adhesive Strip
Tear Resistance
High
Water Resistance
Excellent
Puncture Resistance
Excellent
Recyclability
100% Recyclable
Opacity
Dark inner layer for privacy
Highlights
Feature
Specification
Material
LDPE (Low-Density Polyethylene)
Thickness
55–60 Microns
Tear Resistance
High
Water/Puncture Resistance
Excellent
Closure Type
Peel & Seal Self-Adhesive Strip
Recyclability
100% Recyclable
How to use
Insert your items into the bag, peel away the protective backing strip from the adhesive, and fold the flap over firmly to create a secure seal.
Frequently asked questions
What are the dimensions of these mailing bags?
These bags measure 22.9 x 30.5 cm (230 x 305 mm), suitable for A4-sized items.
How thick are these mailing envelopes?
They have a thickness of 55 to 60 microns (220–240 gauge), providing high tear and puncture resistance.
Are these mailing bags waterproof?
Yes, the LDPE material offers excellent water resistance to keep contents dry during transit.
Are the contents visible through the bag?
No, the bags feature a dark inner layer designed to ensure complete document and product privacy.