Just want to let you know I made another climb of Everest wearing Hotronics with warm feet!
Cyclist Bob Shay writes about winter cycling with Hotronic Foot Warmers.
They were incredible! I am SO glad I had them on summit day (-50 degrees and 70 km/hr winds on the summit).
On summit day, having not been charged for many days, they worked flawlessly, and on the top of the world my toes were toasty warm.
I went from being a skeptic to a total believer. I am certain that without the Hotronics I would not have been able to make the climb on Everest or Lhotse because of frozen feet.
"I love my foot warmers! They performed perfectly. I started out using them on setting #2 for the entire summit morning (at 28,000 ft!)."