I bought these boots to keep my feet dry when stepping into an inflatable boat at the shore.  Too many times, I had cold feet when fishing in my boat after wading in the water in my sneakers.  Boots often don't fit me around the calf but these do.  There is an adjustable flap at the calf that gives more space.  I can even tuck in my jeans.  Also, the soles grip the bottom better than sneakers and I am less likely to slip.  I haven't fallen into the water since I got these.