12 x 17 to 15 x 20 Mailing & Postal Bags
In this category we have mailing bags and postal bags which fall within the sizes of approx:
320 x 440mm + Peal & Seal Lip - 12.6 inches x 17.3 inches + Peal & Seal Lip
400 x 525mm + Peal & Seal Lip - 15.7 inches x 20.6 inches + Peal & Seal Lip
Royal Mail base their postal charges on size as well as weight, and have recently introduced some new sizes. Ensure you keep your postage costs to a minimum by selecting the most suitable products from our range. To learn more about the new Royal Mail Pricing in Proportion rates, click HERE.
MANUFACTURING TRADE TOLERANCES ON MAILING BAGS
Specification: All sizes and thicknesses are approximate. Standard tolerances are in line with industry standards. However, note in particular that bag width may vary by +/-3mm or +/-3% and bag depth by +/-3mm or +/-3% which ever is the greater. Where size is critical, a sample of the product to be packed must be submitted to us in order to agree size tolerances before the acceptance of your order.
Returnamailer - Reusable Mailing Bag - 350 x 500mm + Lip, Qty 25
I contain a minimum of 30% recycled plastic! RETURNAMAILER® Containing 30% recycled pl..
£4.38 or less
Bubble Bag Inserts - 302 x 403mm - 12 x 16 - Qty 10
Use our clear bubble bag inserts to reduce your packing time and waste. Does away with the has..
£2.25 or less
Grey Eco Mailing Bags 14 x 16, 350 x 400 + 40mm Lip Child Safety Warning - Qty 100
If you want to be sure that you are doing your part in helping the environment, then these are the m..
£7.85 or less
White Mailing Bags With Handles 12 x 17, 305 x 430 + Lip, Qty 50
Strong white mailing bags with handles. These are multi use bags, designed to allow easy handling. T..
£5.38 or less
Brown Mailing Bags 14 x 20, 350 x 500 + Lip - Qty 500
These brown mailing bags have been part of our stock line for around 5 years now and have been a gre..
£47.50 or less
Bubble Bag Inserts - 346 x 500mm - 13.6 x 20 - Qty 10
Use our clear bubble bag inserts to reduce your packing time and waste. Does away with the has..
£2.00 or less
Cream Mailing Bags 14 x 20, 350 x 500 + Lip, Qty 500
I contain a minimum of 30% recycled plastic! Containing a minimum of 30% Post Consumer Waste Plas..
£50.00 or less
Grey Eco Mailing Bags 14 x 20, 350 x 500 + Lip Child Safety Warning - Qty 500
If you want to be sure that you are doing your part in helping the environment, then these are the m..
£43.75 or less
Heavy Duty Red Mailing Bags 14 x 20, 350 x 500 + Lip, Qty 250
These Heavy Duty Vibrant Red Mailing Bags are brand new for 2016. Not only are they a nice bri..
£37.50 or less
Heavy Duty White Mailing Bags 12 x 16, 305 x 410 + Lip - Qty 50
I contain a minimum of 30% recycled plastic! Thicker non see through mailers manufactured in ..
£5.00 or less
Orange Mailing Bags 14 x 20, 350 x 500 + Lip - Qty 500
Bright Sunburst Orange Mailing bags from Poly Postal Packaging. If you want your mail order pa..
£47.50 or less
Purple Mailing Bags 13 X 19, 350 x 500mm + Lip - Qty 25
Poly Postal Packaging manufacture 2 versions of a Purple Mailing Bag. Both are very popula..
£2.75 or less
Red Mailing Bags 14 x 20, 350 x 500 + Lip, Qty 25
I contain a minimum of 30% recycled plastic! Containing a minimum of 30% Post Consumer Waste Plas..
£3.75 or less
Reusable Mailing Bags 13 x 19, 330 x 485 + Lip - Qty 50
Advice & Usage Guide Use; The bags will arrive folded or laid flat in an outer Carton.&..
£11.25 or less
White Mailing Bags 14 x 20, 350 x 500 + Lip - Qty 100
I contain a minimum of 30% recycled plastic! Medium weight White Mailing Bags. Containing a..
£10.00 or less
White Mailing Bags With Handles 16 x 20, 400 x 530 + Lip - Qty 50
Strong white mailing bags with handles. These are multi use bags, designed to allow easy handling. T..
£8.75 or less
Baby Blue Mailing Bags 13 x 19, 330 x 485 + Lip - Qty 50
Bright Blue mailing bags or Baby Blue mailing bags as we call them have been part of our stock ran..
£6.00 or less
Black Mailing Bags 12.5 x 17, 320 x 440 + Lip - Qty 50
These bags are 100% recyclable and now contain a min 30% of post consumer recycled plastic. If yo..
£5.00 or less
Bubble Bag Inserts - 420 x 520mm - 16.5 x 20 - Qty 10
Use our clear bubble bag inserts to reduce your packing time and waste. Does away with the has..
£3.50 or less
Burgundy Mailing Bags 14 x 20, 350 x 500 + 50mm Lip, Qty 500
I contain a minimum of 30% recycled plastic! Containing a minimum of 30% Post Consumer Waste Plas..
£51.25 or less
Gold Mailing Bags 14 x 20, 350 x 500mm + Lip - Qty 25
I contain a minimum of 30% recycled plastic! Containing a minimum of 30% Post Consumer Waste Plas..
£2.95 or less
Grey Recycled Mailing Bags 10 x 19, 250 x 485 + Lip, Qty 500
Our stock grey mailing bags are our biggest range of bags and our most popular. With the bigge..
£31.25 or less
Heavy Duty Pink Mailing Bags 14 x 20, 350 x 500 + Lip, Qty 250
These Heavy Duty Vibrant Pink Mailing Bags were introduced into our stock range in 2014. Not o..
£37.50 or less
Merry Christmas Mailing Bag 14 x 20" Qty 1
Printed on a white mailing bag, this simple but traditional Christmas design helps to get into the s..
£0.10 or less
![Metallic Silver Holographic Foil Mailing Bags (430 x 320mm) [C3] + Lip](https://www.polypostalpackaging.com/image/cache/cache/1001-2000/1418/main/366c-metallic-silver-holographic-foil-mailing-bags-430-x-320mm-c3-lip-1418-0-1-0-8-1-228x228.jpg "Metallic Silver Holographic Foil Mailing Bags (430 x 320mm) [C3] + Lip")
Metallic Silver Holographic Foil Mailing Bags (430 x 320mm) [C3] + Lip
Packed in 20s. Dimensions: 320 x 430 mm (12 5/8" x 16 7/8") Standard Size:..
£5.00 or less
Pink Mailing Bags 13 x 17, 320 x 440mm + Lip, Qty 500
I contain a minimum of 30% recycled plastic! Vibrant Pink Mailing Bags have been part of our stoc..
£37.50 or less
Silver Mailing Bags 14 x 20, 355 x 508mm + Lip, Qty 500
Poly Postal Packaging have been manufacturing and stocking our Silver Mailing Bags now for about 8 y..
£50.00 or less
Yellow Mailing Bags 14 x 20, 350 x 500 + Lip, Qty 500
Bright Yellow Mailing bags from Poly Postal Packaging. If you want your mail order packages to..
£47.50 or less
35mu Clear LDPE Bags PWN 355 x 431 + 50mm Lip Perm SAS - Qty 100
I contain a minimum of 30% recycled plastic! Containing a minimum of 30% Post Consumer Wa..
£6.25 or less
Black Mailing Bags 14 x 20, 355 x 508 + Lip - Qty 25
These bags are 100% recyclable and now contain a min 30% of post consumer recycled plastic. If yo..
£4.37 or less
Bubble Bag Inserts 540 x 740mm 21 x 29" - Qty 10
Use our clear bubble bag inserts to reduce your packing time and waste. Does away with the has..
£5.50 or less
Bubble Bag Inserts 600 x 600mm 24 x 24" - 10 Bags Per Pack
Use our clear bubble bag inserts to reduce your packing time and waste. Does away with the has..
£6.50 or less
Clear 30% Recycled LDPE Garment Bags 14 x 17 + Lip, 355 x 431mm + Lip - Qty 100
I contain a minimum of 30% recycled plastic! Containing a minimum of 30% Post Consumer Wast..
£6.25 or less
Heavy Duty Grey Mailing Bags 14 x 21, 350 x 525 + Lip, Qty 250
Advice & Usage Guide Use; The bags will arrive folded or laid flat in an outer Carton.&..
£35.00 or less
Heavy Duty White Mailing Bags 14 x 20, 360 x 500 + Lip - Qty 250
I contain a minimum of 30% recycled plastic! Containing a minimum of 30% Post Consumer Waste Plas..
£37.50 or less
Neon Green Mailing Bags 14 x 21, 355 x 535 + Lip, Qty 250
Our Neon Green Mailing bags are very popular indeed. We introduced them about 6 years ago and ..
£31.25 or less
Violet Mailing Bags 14 x 20, 355 x 508 + Lip - Qty 500
I contain a minimum of 30% recycled plastic! Poly Postal Packaging manufacture 2 versions of a Pu..
£47.50 or less
Bubble Bag Inserts 590 x 890mm 23 x 35" - Qty 5
Use our clear bubble bag inserts to reduce your packing time and waste. Does away with the has..
£5.00 or less
Bubble Bag Inserts 840 x 1040mm 33 x 41" - Qty 1 Bag
Use our clear bubble bag inserts to reduce your packing time and waste. Does away with the has..
£1.50 or less
Clear Self Seal Bubble Bag BB7 - 380 x 435 + 30 Lip - Qty 100
Use our self seal clear bubble bags to reduce your packing time and waste. Does away with the ..
£28.12 or less
Grey Recycled Mailing Bags 12.5 x 17, 320 x 440 + Lip, Qty 100
Our stock grey mailing bags are our biggest range of bags and our most popular. With the bigge..
£8.13 or less
Grey Recycled Mailing Bags 14 x 16, 350 x 405 + Lip - Qty 100
Our stock grey mailing bags are our biggest range of bags and our most popular. With the bigge..
£5.94 or less
Grey Recycled Mailing Bags 13 x 19, 330 x 485 + Lip - Qty 100
Our stock grey mailing bags are our biggest range of bags and our most popular. With the bigge..
£10.00 or less
Polypropylene Cello Bags 311 x 463 + 40mm Lip - 12.25 x 18.25 + Lip - Qty 100
Now packed in 100s 12.25" opening x 18.25" depth + Lip with reseal peel and seal 311..
£6.25 or less
Polypropylene Cello Bags 317 x 368 + Bottom Gusset + 40mm Lip - 12.5 x 14.5 + Bottom Gusset + Lip - Qty 100
Now packed in 100s 12.5" opening x 14.5" depth + a bottom gusset + Lip with reseal peal..
£5.84 or less
Grey Recycled Mailing Bags 14 x 21, 350 x 525 + Lip - Qty 50
Our stock grey mailing bags are our biggest range of bags and our most popular. With the bigge..
£5.00 or less
Polypropylene Cello Bags 355 x 463 + 40mm Lip - 14 x 18.25 + Lip - Qty 100
Now packed in 100s 14" opening x 18.25" depth + Lip with reseal peel and seal 355 x ..
£7.09 or less
Polypropylene Cello Bags 412 x 508 + 40mm Lip - 16.25 x 20 + Lip - Qty 100
Now packed in 100s 16.25" opening x 20" depth + Lip with reseal peel and seal 412 x ..
£9.16 or less
