side vents on both boots came loose. left boot pvc material cracked at foot flex area. right boot pvc stitching came apart at the heel area. i like the boots, i just want them to stay together. they are light, portage much better than you might think just looking at them, do have the non slip tread as advertized, and are comfortable for all day wear. i can see why they say they are favorites for river rescue guys, as i had occasion to swim for my life while wearing them.