I had reviewed the milk packaging of this supermarket before, but they added more changes to the packaging and this part is very interesting. However this has been added to their packaging for a while though, but still it is a very innovative design and it is not about the side opening so you can see how much milk there is.
The innovative part is that they added a pull tab so you can open this easier than before. Normally you need to fold it open and many times it get stuck or does not fold at all and you end up getting a knife of scissors to open it. This actually works suprisingly very well and everytime it opens correct. Also it uses far less materials then the conventional design with a screw cap, which uses more plastic than this simple pull tab.