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Why Choose Jiffy Airkraft Bubble Lined Envelopes?
One of the most popular mailers on the market, Jiffy bags offer the perfect balance of protection and low cost. The slim bubble lining cushions delicate items, while the lightweight design keeps shipping costs down - even more so with our wholesale discounts at Kite Packaging.
Made from high-quality materials and finished with a water-resistant coating, these bubble bags are built to withstand the challenges of air or surface freight. Unlike heavier card or paper options, they won’t easily burst if damaged, making them a smart, reliable choice for everyday packing.
Small & Large Jiffy Bags
Our small Jiffy bags start at just 90 x 145mm (internal), offering a snug, protective fit for compact goods like CDs or keyrings. Need something bigger? Our large Jiffy bags comfortably house bulkier contents like A4 binders while still offering lightweight, shock-absorbing protection, thanks to their bubble lining.
For the best results, we always recommend measuring your items and choosing the closest fit.
Use the comparison table below to find our Airkraft equivalent of padded envelopes made by other manufacturers such as Sealed Air, Arofol, Sansetsu (Featherpost).
Bubble lined mailers guide: Use this table to compare size equivalence of padded envelopes
Kite mailers (Reference - Size) |
Kite Enviro mailers (Reference - Size) |
Arofol (Reference - Size) |
Jiffy (Reference - Size) |
Sealed Air (Reference - Size) |
Featherpost (Reference - Size) |
---|---|---|---|---|---|
KM1 - 120 x 165 mm | EM1 - 100 x 165 mm | 1 - 110 x 165 mm | 000 - 90 x 145 mm | 000 - 110 x 160 mm | A - 120 x 165 mm |
KM2 - 120 x 215 mm | EM2 - 120 x 215 mm | 2 - 120 x 215 mm | 00 - 115 x 195 mm | 00 - 120 x 210 mm | B - 120 x 215 mm |
KM3 - 150 x 215 | EM3 - 150 x 215 mm | 3 - 150 x 215 mm | 0 - 140 x 195 mm | 0 - 150 x 210 mm | C - 150 x 215 mm |
KM4 - 180 x 265 | EM4 - 180 x 265 mm | 4 - 180 x 265 mm | 1 - 170 x 245 mm | 1 - 180 x 260 mm | D - 180 x 265 mm |
KM5 - 220 x 265 | EM5 - 220 x 265 mm | 5 - 220 x 265 mm | 2 - 205 x 245 mm | 2 - 220 x 260 mm | E - 220 x 265 mm |
KM6 - 230 x 335 | EM6 - 230 x 335 mm | 6 - 220 x 340 mm | 3 - 220 x 320 mm | 3 - 220 x 330 mm | F - 230 x 335 mm |
KM7 - 240 x 335 | EM7 - 240 x 340 mm | 7 - 230 x 340 mm | 4 - 240 x 320 mm | 4 - 240 x 330 mm | G - 240 x 335 mm |
KM8 - 270 x 360 | EM8 - 270 x 360 mm | 8 - 270 x 360 mm | 5 - 260 x 345 mm | 5 - 270 x 360 mm | H - 270 x 360 mm |
KM9 - 300 x 445 | EM9 - 300 x 445 mm | 9 - 300 x 445 mm | 6 - 290 x 445 mm | 6 - 300 x 440 mm | J - 300 x 445 mm |
KM10 - 350 x 470 | EM10 - 350 x 470 mm | 10 - 350 x 470 mm | 7 - 340 x 445 mm | 7 - 350 x 470 mm | K - 350 x 470 mm |
KM12 - 460 x 680 | EM11 - 410 x 575 mm | 12 - 460 x 680 mm | 8 - 460 x 660 mm | - | L - 460 x 680 mm |

Examining what heavy duty Jiffy Mailmiser bubble lined envelopes are made from, and what they can be used for.
Our Jiffy Airkraft padded envelopes are available in a huge range of sizes, from 000 to 8.
Each is printed with the size and Royal Mail Pricing in Proportion information.
AirKraft envelopes are great for sending items in the post.
They have a peel-&-seal strip and are padded with a layer of Jiffy bubble.
What Is a Jiffy Bag Used For?
Jiffy bags are used for safely posting delicate or lightweight items. Their bubble lining cushions contents during transit, while the double glued seams and self seal closure ensure a secure, tamper-resistant finish - perfect for e-commerce, retail, and general business use.
What Are Jiffy Envelopes Made From?
Kite’s Jiffy Airkraft envelopes are made with a 90gsm Kraft paper exterior, coated with 12 micron polyethylene for added water resistance. Kraft paper is strong, durable, and more eco-friendly than bleached alternatives, using less energy in production while offering excellent tear and puncture resistance.
Inside, a fully laminated Astro SupraBubble lining delivers superb shock absorption, protecting contents from impact. The flat seam construction keeps the bubble wrap snug around your items, reducing movement in transit.
What Other Types of Mailing Bags Do You Offer?
We offer a wide range of mailing bags to suit different products and shipping conditions. From heavy-duty options for tougher handling environments to weather mailers for added protection, there’s a solution for every need.