this season i started using 1000 gram rubber boots, i think mine are field and stream. when it's really cold i wear three pairs of hunting socks with the toe warmers on both the top and bottom. my feet weren't cold all day. just be sure to get the boots a size too big so they'll still fit, and those boots i think were around $80 so it's worth a try before shelling out $150 or more. good luck, nothing makes a day in the stand miserable like cold feet or hands.