This Astec insulating insole has been tested by people with Raynaud's with over 90% positive feedback. Ready sized and ready to wear in your shoes. It has a hard wearing synthetic upper layer, "Nano-Warmth" insulating layer, a cushioning/insulating layer, and a semi-permeable base to help keep feet dry and fresh. Available in all sizes for both male and female. Includes right and left foot inserts. Thickness is 4mm.
Contains: Polymer fibres, Aluminium, 30% non-woven (100% viscous), 63% polyurethane, Butadlede-Styrene, synthetic latex foam.
"I had a pair of the already formed ones (bound) and have worn them in my gardening shoes on several occasions and found them useful. I could certainly tell that I had them in my shoes, I could feel the warmth under my heels and instep particularly. I will certainly tell the other members of our group about them at our next meeting, and will consider buying some to put in other shoes."
Posted by JR on 25th Oct 2016
I'm still experiencing numb feet with these in my winter shoes which is disappointing given the high price. I can't detect any extra heat, just another layer of insulation. I think to call them self heating is misleading. Not what I had hoped for.
Thanks for your comments. We are sorry to hear that you are still experiencing numb feet - all our products work best when the feet and hands are warm. So you may wish to try warming your socks on the radiator or by using a hair dryer before heading outside to see if they work better.
Your feedback has been really helpful and as a result we've changed the name. The manufacturers are a regular suppliers of healthcare products and this was how they had described them.