Grabber Heat Sox are like electric blankets for your feet, that you wear. They are made of a blend of wool, nylon, Spandex and Dupont Thermolite. A small battery pack attached to the top of the sock generates safe heat to the embedded coil in the sock. Dual temperature settings let you control the amount of warmth. Enjoy as many as 13 hours on one D battery per sock. You can also wear the socks without the battery pack, which is removable.  $25 at thewarmingstore.com, Cabela's, and Target.com.
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