Little Hotties Thermal Insole, Men's Size 7-13, 1 Pair Stays Heated 5 Hours

I got 2 pairs at a special price. Very happy with material. I have some Baffins that take a felt liner, which means the boots must be far 'oversize' to allow room for a thick bootie/pac liner. These trim-to-fit insoles must be far oversize for such applications. My size 10 Baffin 'Hunter' boots are almost too long for these, but they work well. I think these felt insoles are best for rubber irrigation-type boots, not pac boots. I bought 2 pairs, one for my Baffin Hunter pac boots, one for my irrigation-type rubber Wellington boots. I had to trim slightly for the rubber boots.