White polyethylene shipping mailers are lightweight, durable, and tear-resistant envelopes designed for safely shipping non-fragile items like clothing, accessories, and documents. Made from polyethylene, they provide protection against moisture, dust, and tampering, making them ideal for e-commerce businesses. These mailers often feature a self-sealing adhesive strip, which allows for quick and secure packaging without the need for additional tape.
Their smooth, writable surface also supports easy labeling or printing, and they come in various thicknesses. Depending on the level of protection needed. Poly mailers are favored for their efficiency in reducing shipping costs due to their lightweight nature while still providing reliable protection for goods in transit
Hear from Our Customers
See why we’re trusted as the UK’s go-to for packaging and envelopes from verified Trustpilot reviews.
Charlotte G
June 2025
Unfortunately my order arrived damaged but after emailing the issue over to the company I received a quick response from Jess who was able to fix the problem in minutes, thanks so much Jess, fantastic customer service, will definitely be ordering from this company again.
I recently made a purchase from postal packaging which is the first time I had purchased from the company, and I couldn’t be happier with the entire experience. From start to finish, everything was seamless, professional, and incredibly customer-focused. The items I ordered arrived quickly, was exactly as described, and exceeded my expectations in both quality and value. But what truly set this company apart was the amazing customer service. When I had a few questions after placing my order, their team responded promptly, kindly, and with a level of detail that showed they genuinely care about their customers. I highly recommend postal packaging to anyone looking for top-quality products and truly exceptional service. I’ll definitely be a returning customer! Thank you!
Really easy process to order some custom printed envelopes, James was so helpful and answered all my questions. The envelopes arrived on time and are really great quality, wouldn’t hesitate to use this company again!