Mailing bags MAILmedia K20 White 66 g/m² Size 370×480 mm

MAILmedia K20 White mailing bags are lightweight poly mailers designed for secure transportation of garments, documents and small goods. With an external size of 370×480 mm and a material weight of 66 g/m², these white mailers offer tear resistance and basic moisture protection while keeping postage costs low. Each bag includes a self-seal adhesive strip for fast closure and a printable surface area suitable for addressing and labeling.

Advantages

These mailing bags combine low weight with sufficient mechanical strength, making them cost-effective for high-volume shipments. The moisture-resistant polymer material protects contents from light rain and humidity during transit. The integrated self-seal adhesive strip enables quick and secure closure without additional tape, and the smooth outer surface accepts labels and printed addresses cleanly.

Suitable for

• Shipping clothing and textiles
• Enclosing documents and brochures
• Sending small accessories, cosmetics and non-fragile items
• E-commerce order fulfillment and returns

Key specifications

• External dimensions: 370 × 480 mm
• Material weight: 66 g/m²
• Color: white
• Closure: self-seal adhesive strip
• Material properties: tear-resistant, moisture-resistant

How to use

Place the item inside the mailing bag ensuring it lies flat and does not overfill beyond the recommended dimensions. Remove the protective liner from the adhesive strip and press firmly along the entire flap to secure the closure. Apply address labels or write recipient information on the designated outer area, and affix postage according to carrier requirements.

Recommendations

For fragile or sharp-edged items, add internal padding or use a rigid mailer to prevent punctures. Store unused bags flat in a dry environment away from direct sunlight to preserve adhesive performance and material integrity.