Is this the end of box shaped direct mail?

In theory you can send anything through the post (wrapped or not) as long as you add enough postage, but I wouldn't risk it. The Yanko Design Blog showcased an innovation in packaging that could render the traditional DM in a box obsolete, helping reduce our environmental impact. And, also greatly benefit eBay traders, online shoppers and anyone sending gifts by post.

Patrick Sung's design for the 'Universal Packaging System' (UPACKS) is very simple. Patterns were added to recyclable corrugated cardboard creating a package rigid enough to protect items, but much smaller than the usual box as the packaging is wrapped around the item.