ObboMed MF-2305L Far Infrared Carbon Fiber Heated Foot Warmer/Boots/Slipper, USB 5V 10W – Auto Off, Size L: #45.5 (fits Foot up to 45.5)

I got the Large size and estimate them around size 13 or 14 American so my 10's have ample room. The heating elements are adequate on high and help suppress my neuropathy. Yes, I wear them all nightThey shut off after 3 hours but the booties are plush and retain heat well. I also use battery operated inserts in them with good results.

Absolutely love them because my feet were always cold

The boots once on work well set on high. But it’s hard to put them on because the cord is too short between the two boots. Not good planning on manufacturers part

These foot pull on warmers don’t work. Are cheaply made. Save your money.

They are very nice for just sitting and gaming b it if you expect to stand you will feel wires so be prepared. Still love them very much

Nice comfy Boot. Heat is in removable sole which doesn't stay put in bottom of boot. You do feel like you are walking on a mass of wires but I had no problem with that. However, the heat is in the center of the sole and not up near the toes. Just couldn't get my toes warm.

My feet are often stiff in the morning and these boots loosens them up so I can walk easy. No more clumping around like Frankenstein on stumps.

great helped feet allot