Too little lateral support

Actually, I have quite symmetrical legs and get barely bubbles even after long journeys, but with these shoes I'm not clear. The right provides forward and the heel is not enough lateral support, the foot often wobbles a bit. The Left presses somewhere left front foot upward. And with the rubber band as you can nothing correct, the construction is useless, it spans only a little in the middle and not distributes the power to the tip.

Result: blisters on the heel after only two or three kilometers.

Unfortunately, the shoes are not so obviously broken that I could expect for goodwill.

And I do not think they really airy even though they are called sandals. Since even my leatherette shoes are much more comfortable in the summer. Only for cycling are good, because there is little opportunity to blistering and the weak draft is just right.