These are my absolute favorites in the summer. I buy every year a pair Olowahu because I wear them all summer almost every day for several hours, they are after one season also expired. Who only occasionally carries is much longer lasting listening pleasure. Through the crossed straps the flip flops sitting safely on foot and also impassable terrain (eg forest) is not a problem. The material of the sole is comfortable, but squeaks when it gets wet. I usually wear shoes in size 39 (UK or 6) but this I always order in 40, I'm only just otherwise with the heel still so on the sole and just looks stupid.