2015's card design took inspiration from the christmassy silver first class stamps being used in the UK.
The design weaves a pattern from the postage stamps. The card requires no envelope and postage is cleverly integrated into the design of the artwork.

Contained within each pack are loose stamps of the denominations illustrated on the face of the card.
All you have to do is write the card, place the stamps, fill out the address label and stick to seal!