Jiffy Bag Size Guide


If you’ve ever posted a parcel, chances are at some point you’ve used a Jiffy Bag, sometimes known as a Padded Mailer or Padded Envelopes. These handy little bags are used across the world and help to protect items during the posting process.


The Original Jiffy bags were invented in the 1960s by a Birmingham company that specialised in creating wood wool products. In earlier Jiffys (and the eco option), the bags use an inner layer of shredded paper, instead of bubble wrap.


Bubble wrap had been invented (accidentally!) a few years before that. Eventually, in most Jiffy Bags this replaced the shredded paper interior, creating reliable protection and an amazing invention.


At Springpack, we supply a range of Jiffy Bag sizes, ranging from 00 to 8. Our Jiffy Padded Bags offer the very best protection and help to ensure your items arrive in the best possible condition. To make sure you get the best protection, Jiffy Bag sizes are an important aspect to consider. We’ve included some helpful information on choosing the right size and provided a handy size guide!


What is the largest Jiffy Bag?

The biggest jiffy bag size available from Springpack is our Size 8 Bags, which come in packs of 50. They offer durable cushioning, particularly when compared to lightweight mailers.


If you require a padded mailing bag larger than size 8 (442x661mm) or have bespoke packaging needs, talk to our packaging experts today, click here to submit an enquiry.


What is the smallest Jiffy Bag?

The smallest bag sizes we offer are Size 00 and Size 0.


Size 00 (105x229mm) is the perfect size for posting smaller items, such as jewellery and hardware like bags of nails and screws.


Our Size 0 bags (135x229mm) are slightly wider, which makes them ideal for posting small books and stationery. If you’re looking for something with more length, then the Size 3 bags – 195x343mm – are the best option for your packaging needs. These bags ideally suit delicate clothing which needs extra protection. They would also be a great fit for larger stationery and paperwork.


Are Jiffy Bags eco-friendly?

Yes! You can recycle all Jiffy Bags supplied by Springpack! They are manufactured with 100% recycled paper fibre lining. If you prefer plastic bubble-lined mailing bags, you can see our full range here.


Our Jiffy bags are 100% recyclable, usually in an at-home recycling bin, but you should always check first with your local recycling centre. It’s important to check with individual suppliers as some other mailing bags may not have the environmental credentials we’ve listed above.


We are proud to be a Carbon Neutral company, and we are FSC registered! So why not choose Springpack for your ethical packaging requirements?


Which parcel delivery services accept Jiffy Bags?

You’ll be glad to know, that practically everybody accepts Jiffy Bags as packaging. These include Royal Mail, the Post Office, Evri, Inpost, Yodel, DHL, and more!


If you’re not sure if you can use a Jiffy Bag with your preferred courier service, we recommend you contact them directly.


When should you use a Jiffy Bag?

If you are sending letters and parcels of items such as keys, documents, jewellery, clothing, shoes (and more!) a padded Jiffy mailer could be the choice for you.


Jiffy bags are incredibly flexible, which makes them perfect for awkward shaped items. They are also a lot stronger than a standard paper envelope, making them a safer option for anything that may rub through a paper



Why should you use a Jiffy instead of a cardboard box?

There are many benefits to using a Padded Mailing (Jiffy) Bag instead of a traditional cardboard box!


For a start, padded mailers can help you save money on your packaging operation. This is because they are more compact and often weigh less. The reduction in size and weight can often reduce the cost of sending a parcel, as most carriers charge by weight and size.


Our Jiffy bags are ready to use, and have an adhesive strip, which will save you time because you do not need to erect them, or apply tape. You can simply put your items inside, seal the bag using the adhesive strip and then you’re ready to ship!


Due to the huge range of sizes of padded mailers available, you are more likely to be able to easily find the perfect size for what you are sending, this can reduce your postage cost, need for void fill, and is better for the planet – the courier can hold more parcels per delivery, meaning fewer trips.


Padded mailers can often be used in a standard post box or a parcel locker, because of their compact size and thin width, reducing the need to drop off your parcel at the post office. A lot of sizes can often fit through your customer’s letter box, reducing the risk of the parcel being left on your customer’s doorstep.


When shouldn’t you use a Jiffy Bag?

It is very important to consider the breakability of the item you are sending before you package it. If your item is particularly fragile, such as a vase, a sturdy box may be more appropriate. This is because during carriage, items are often stacked on top of each other, and this pressure may cause the item to get pressure damaged.


The same is the case with technology, such as a vinyl records. Due to the snap-ability of both of these products, they may easily be bent out of shape. In this instance, we would also recommend using a box.


Why not check out our post where we tested the capabilities of the padded mailer?


How secure are Jiffy Bags?

Jiffy Bags have a double glued bottom flap with no side seams – which means they’re resistant to bursting. All of this combined with a ‘peel and seal’ strip means you can quickly and easily pack and distribute items.


Why not watch our short video on Jiffy Padded Bags for more information on why these bags are the ideal choice for your packaging needs?



To find out the sizes of Jiffy Bags, take a look at our helpful size guide below.

Jiffy Bags

About the author

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Simon Rees
I am Springpacks Head of Marketing covering all aspects of marketing. I specialise in digital marketing with almost 15 years experience.
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