Jiffy Green Bags

Jiffy bag sizes guide

Jiffy Green sizes run from 00 (smallest) to 7. Sizes 00 to 4 post as a Royal Mail Large Letter when the packed bag is no thicker than 25mm and weighs no more than 750g. Sizes are outer dimensions; allow about 10–15mm each way for the padding.

Size 00: 105 x 229mm · 4.25 x 9in · Pens, cables, keys, slim accessories · Large Letter (max 353 x 250 x 25mm, 750g)
Size 0: 135 x 229mm · 5.25 x 9in · A6 items, jewellery, small accessories · Large Letter (max 353 x 250 x 25mm, 750g)
Size 1: 165 x 280mm · 6.5 x 11in · A5 items, paperbacks · Large Letter (max 353 x 250 x 25mm, 750g)
Size 2: 195 x 280mm · 7.75 x 11in · A5 notebooks, DVDs, games · Large Letter (max 353 x 250 x 25mm, 750g)
Size 3: 195 x 343mm · 7.75 x 13.5in · Slim books, long accessories · Large Letter (max 353 x 250 x 25mm, 750g)
Size 4: 225 x 343mm · 8.75 x 13.5in · Hardbacks, folded T-shirts · Large Letter (max 353 x 250 x 25mm, 750g)
Size 5: 245 x 381mm · 9.75 x 15in · A4 documents and books · Small Parcel (over 353mm)
Size 6: 295 x 458mm · 11.5 x 18in · Large books, folded jumpers · Medium Parcel (over 450mm)
Size 7: 341 x 483mm · 13.5 x 19in · Large flat items, bulky clothing · Medium Parcel (over 450mm)

Pack sizes

Most sizes come in packs of 20 and 50 for low-volume sellers, and 100 or 200 for regular senders. The larger packs cost less per bag.

Frequently asked questions

What size Jiffy bag fits A4?
Size 5 (245 x 381mm). Size 4 is a tight fit.

What size Jiffy bag fits A5?
Size 1, or size 2 for thicker items.

What is the padding made of?
Paper fibre between the kraft layers, not plastic bubbles.