Blue Medium Self-Seal Mailing Bags

Waterproof & Sealable

from £6.45 £5.37
In stock


Strong and durable medium mailing bags, available in waterproof polythene or bubble padded paper.

Made from high quality 50 micron polythene, available in a range of colours and quantities.

Waterproof and tear-resistant, allows you to send your item safely without risk of opening or tampering.

Padded paper lined with small bubble wrap to protect items in the post.

The peel and seal flap makes it easy to close and ensures maximum security sealing.

Medium size, ideal for sending books, paperwork, clothing etc.

Size Guide


  • IDEAL FOR: For books, paperwork, small items of clothing etc.
  • WATERPROOF: Made with 50 micron polythene that protects the package contents.
  • TEAR RESISTANT: Safely send your item without risk of opening or tampering.
  • PEAL & SEAL FLAP: Ensures maximum security sealing.
  • SIZE: 35cm (13") x 40cm (15.8")
More Information
Use Postage

We offer free standard shipping on all of our United Kingdom orders.

Your Parcel may be dispatched by one of our leading couriers.

DPD (Next Day, Saturday or Two Day service for outside of mainland UK - 0-25kg inclusive)
DPD Local (International Tracked Service - 0-25kg inclusive)
DHL (Standard)
FedEx (TrakPak)
Royal Mail (Standard 48hr Tracked Service & 24hr Tracked Service)

We aim to dispatch all orders received before 1 PM on the same day. During busier periods and for larger, more complex orders, we cannot guarantee this.