Anyone tried the ThermoFeet "heat reflectors by DryGuy? They claim that this thin aluminium liner that is placed under the footbed of your boot will reflect 98% of body heat.

They claim it will keep your footwear 10-20 degrees warmer.


Any comments would be greatly appreciated.

Here is a link to their website.
http://www.dryguy.net/PRD_TF.htm

Thanks

I've used a similar product in the past and my feet still got cold , they also tend to be slippery underfoot . Get some wool footbed liners instead .