11×14 Poly Mailers from The Product Boxes UK are the ideal packaging choice for fashion retailers, DTC brands, and eCommerce stores looking for lightweight yet reliable protection. Sized perfectly for folded clothing, soft goods, and promotional kits, these mailers reduce postage costs while keeping items secure with a strong self-sealing strip. Made from durable polyethylene, they resist moisture, tearing, and punctures in transit.The smooth blank surface allows for clean labelling or full custom printing, and we offer free logo design on all printed runs to help new and growing brands stand out. Whether you need a clean, unbranded look or bold on-brand packaging, these poly mailers give you full control. Wholesale and bulk quantities are available with flexible turnaround times to support your fulfilment needs. Add your own design or request our in-house artwork support — it’s all part of helping you ship smarter. Proudly made and shipped across the UK.
