Shipping charges for this item to United States: $8.36
To be honest, I actually meant to buy another version of these but wasn't paying sufficient attention. However had a couple of hours in the wet last weekend and came home with feet which were not only dry but warm too. Still to do a whole day in proper west of Scotland rain but I'm optimistic!
Regarding size, I use Lake MTBshoes even on my roadbike (because it can be a long walk even to get a phone signal here if you've got problems) and they are sized perfectly
Have used these 3 times now, and one day was particularly cold - about 3 degrees. Being the first overshoes I have owned I could immediately feel the difference as my feet were nice and warm. The real test will be if I venture out at below 3 degrees, and also whether the bottoms start to fray or not. I presume this will eventually happen because I prefer to wear SPD cleat shoes so the bottoms of the OS will of course be on the ground when I have to walked with them on.
Not sure about the heavy duty rating but just used them on 27 mile ride at minus temperatures and kept feet dry and warm. Found them really quick and easy to put on and take off. Some signs there will be wear points on heal and toe but I commute 135 miles a week so time will tell. For the price they were excellent value.