Airkraft Jiffy bags colours Include: Gold & White. These lightweight jiffy bags are our most popular postal bags and the retail favourite. These economical mailers give you all the protection you need with the added benefit of reduced postal costs. Airkraft Jiffy bags has a fully laminated lining of Astro Suprabubble for extra strength. With excellent tear and puncture resistance and a strong self seal closure. Airkraft Jiffy bags are ideal for posting items that are susceptible to impact during transit. The Ideal Jiffy bag for fulfillment houses, mail order and contract packers.