The straps on this shoe cover you skin more than I would like, so the &#34;breathing&#34; aspect is limited. The lacing has enough length to provide for a high instep, but the sewn side straps limit this, so if you have a high instep (as I do), these are less than perfectly comfortable. If you do much walking in these, there are some roughly sewn parts of the heel strap that rub on the tender skin on one side of your achilles tendon. Blisters and bleeding happened to me after a mile of walking. So while I like the waterproof material for that feature, they are clammy and damp on your feet. The slits between the straps are not big enough to counteract this &#34;plastic bag&#34; effect.