I want to believe its a fluke but Im not sure. One part failed to fit but a drop of glue did the job. When I ended up stepping someplace muddy, I just washed them out when I got back to the hotel. So now, to explain. Same here. Very comfortable & last ages well worth the price. Just be aware to order one size up it runs smaller than normal. Overall, I?m impressed. It will get better later on. Thanks samsung for the great watch.