Green Polyethylene Postal Bags 12x16 Inch
Our 12 x 16 inch green mailing bags are the perfect mid-size solution for secure, eco-conscious shipping. Crafted from durable, waterproof polythene, these bags offer strong protection for everyday items while adding a vibrant touch to your packaging.
The self-seal strip ensures a quick, tamper-evident closure, and the bright green colour makes your parcels stand out in the post. Whether you’re mailing from home or running an online store, these bags combine style, strength, and practicality.
Our Green Mailing Bags are made from low-density polyethylene (LDPE), making them a durable and eco-friendly option for shipping small parcels safely. These bags for postage are specifically designed to be recyclable; simply remove the glue strip before recycling to ensure proper processing.
Perfectly sized, they are compatible with the Royal Mail small parcel service, providing a seamless postal experience. The vibrant green colour can help with branding for small businesses looking for a custom mailing bags option.
Ideal for: A4-sized books and binders, A4 items, T-shirts, jumpers, and folded clothes
Green Mailing Bags Size Guides
Size Guide | Size in Inches | Centimetres | Compared to Paper Sizes | Best For |
---|---|---|---|---|
Medium | 10x14 inch | 25.4 x 35.5 cm | Slightly smaller than A3 | Light jackets, books, larger documents |
Medium | 12x16 inch | 30.5 x 40.6 cm | Close to A3 | Sweaters, jeans, medium plush toys |
Large | 15x18 inch | 38.1 x 45.7 cm | Between A2 and A1 | Multiple garments, larger plush toys |
Large | 17x22 inch | 55.8 x 43.1 cm | Close to A1 | Bedding sets, large textiles, posters |
Post Bags You Can Trust
These green bags for parcels are ideal for both personal and business shipments of all sizes. Available in several colours including grey, blue, pink and more. The durability gives you the peace of mind that your parcel will arrive at its destination without any bother. For business owners trustworthy packaging supplies is a must to help keep any problems such as damaged items or a high volume of returns thats why we have made our bags to withstand all stages of transit.

All Round Packaging Solutions
At Mr Bags, we stock a wide range of packaging supplies, including cardboard boxes, packaging tape, and different types of postage bags like biodegradable mailing bags and more. We are dedicated to providing high-quality, affordable solutions that support small businesses in getting their parcels sent out efficiently and cost-effectively. Our commitment ensures you can send your items on time while keeping costs low for maximum profit.
Water Resistant
The plastic mail bags available at Mr Bags are designed with water resistance in mind, offering reliable protection during transit or storage. This feature ensures that any accidental splashes or exposure to rain will not compromise the contents of your parcel.

Made to Last
Our post bags are manufactured using strong, resilient plastic material that is both tear and puncture-proof. These large parcel bags are built to withstand rough handling and ensure your items reach their destination in pristine condition, regardless of the transit challenges they may face.

Self Seal Adhesive Strip
Each postage bag comes equipped with a self-seal adhesive strip that ensures your parcels are securely sealed. This not only keeps your package intact but also acts as a deterrent against tampering, providing peace of mind that the contents will remain secure from your hands to the destination.

Lightweight Material
Opting for our lightweight mail bags offers significant benefits; they help reduce shipping costs and are easy to store, making them an ideal choice over other heavier packaging options. The lightweight nature of these shipping bags not only makes them more economical but also environmentally friendly by minimising the overall shipping weight.

Royal Mail 24 Tracked
Dispatched same day if ordered before 5 pm Monday to Friday. Please allow up to 1-2 days for delivery.
£1.99
DPD Next Day
Dispatched same day if ordered before 3 pm Monday to Thursday. Not available to Scottish Highlands & Islands.
£4.99
Free on orders over £100