BSTech Heavy-Duty Mailing Bags | 310 x 420 mm (A3) | 50 Microns | 100 pcs

Efficiently package your mid-to-large sized orders with the BSTech Heavy-Duty Foil Mailing Envelopes (FB04). Tailored for professional e-commerce merchants, busy mailrooms, and fulfillment networks, these generous A3 shipping bags provide the ideal balance of rugged protection, absolute confidentiality, and fast processing speeds for larger parcel volumes.

Manufactured from a high-performance, co-extruded 50-micron thick plastic film, these mailers deliver robust tear and puncture resistance, ensuring that bulky items or box corners do not pierce the plastic during transit. The advanced dual-layer material features a clean white exterior that gives your deliveries a premium retail look and ensures clear label visibility, backed by a solid black interior for 100% opacity. This complete blackout design keeps your customer’s contents entirely hidden from outside view, guaranteeing security and privacy.

The integrated, tamper-evident self-adhesive strip makes sealing large items quick and effortless. Once pressed down, the permanent bond cannot be reopened without visibly tearing the bag, providing a reliable layer of defense against tampering and theft.

Features & Benefits

• Generous A3 Capacity: Perfect for larger goods, multi-item apparel orders, or textile items that require more volume than standard mailing bags can offer.

• 100% Opaque Privacy Shield: The deep black internal lining blocks out all light, keeping valuable or private items completely confidential.

• Weatherproof Protection: At 50 µm thick, these bags act as a durable barrier against rain, snow, dirt, and rough handling through global postal systems.

• High-Speed Sealing: The simple peel-and-seal lip eliminates the need for tape or scissors, drastically reducing fulfillment times on your packing line.

• Convenient Pack Size: Supplied in an inner carton of 100 pieces, allowing you to keep large mailers readily available at your packing stations without taking up excessive warehouse space.

Specifications

General Specifications

• Brand: BSTech

• Product Code: FB04

• Format Size: A3

• Pack Quantity: 100 pieces (Inner carton)

• Product Colour: White (Exterior)

• Inner Colour: Black (Interior / Opaque)

• Closure Type: Self-adhesive peel-and-seal strip

Weight & Dimensions

• Width: 310 mm

• Length: 420 mm

• Maximum Pouch Thickness: 50 µm (microns)

Ideal For Shipping:

Sweaters, winter apparel, multiple clothing items in a single order, shoe boxes, backpacks, toys, and larger e-commerce goods requiring dependable, lightweight protection.