We use these for skiing and they are great! Just make sure to put the shiny side down. Also as you are putting them in your boots - don't wait too long between opening the package and putting them in because they can poof up (but that goes away after you put your foot on them and put weight on them). The M/L fits my shoes (women 9) and my husbands (men 9) great.
My husband is a hunter and when you hunt in ND at this time of the year, your feet get cold when you are out for extended periods of time. He has enjoyed the warmth of these inserts and will be happy to have them when he is our snow-blowing too!
I have used this product in the past. I have checked many places and overstock had the best price and shipping price around. My order was processed and received in a very timely manner. This product stands up to its word. 5 Hours or more of heat. Great for all outdoor sports in cold weather!
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