Water resistance is great, I put on thick socks and warmth was ideal. although it deos charge very fast While running they flop all over the place. If you have a large head you may find these uncomfortable. Hope this review helps some other side by side owners that want some easy sound solutions. in my old place thatd been great, but here? Cant be that loud :( I havent yet run down the battery, and its been on for 2 days . Theyre supportive and very comfortable for long walks. Those gave me a headache after 30 min of use. They love the comfort and traction of these slippers. 2) They are comfortable to wear!