[PhasmaFelis]

From TFA:

"So why sqround? Why not a crisp cornered square bottle, you ask? Obviously, a perfect square would be most efficient in terms of packing. Squares, however, come with their own set of challenges. When bottles travel down the manufacturing line on their way to your door, they are constantly moving from single file to big groups, around curves and corners, and jostling into place. A bunch of round bottles will roll off one another and travel smoothly around corners, but a bunch of square bottles have a tendency to lock up with one another, kind of like a losing game of Tetris. By generously rounding the corners of a square (to the industry-coined “sqround”) we solve these production line issues."