If these actually keep my feet warm ice fishing, I'll upgrade to 5 starts. They are up against the white military bunny boots, which are 100% awesome for keeping feet warm all day on a frozen lake, but are not awesome for walking and running is impossible since they literally weigh almost 5 pounds each. These boots are light weight and appear very well made, the removable liner is super think and cushiony. I sprayed them with Neverwet, added a thermal felt insole (it came with a very thin one which I replaced), and put them away in my basement until next winter. I buy Kamik winter boots for my kids as they are reliably waterproof and warm at a very reasonable price, best value out there. So hopefully I'll like the grown up boot just as much.