These are probably the most comfortable shoes I've ever worn. They are walking on clouds BUT they have a serious problem. When walking on smooth surfaces, the bottoms stick to the ground, causing the person to fall forward. it happened to me Luckily I was able to avoid the fall, but my friend's wife broke her kneecap. After further research on the internet, I found that this happens to many people. Skechers will soon realize they have a serious problem and will take the shoes off the market.