Snook Ease Heated Insoles Shoe Warmer Inserts - Foot & Toe Warmers for Winter, Microwavable Insoles for MenSnook Ease Heated Insoles Shoe Warmer Inserts Foot & Toe Warmers for Winter, Microwavable Insoles for Men Portable & Microwavable Cold Feet Solution Unlike electric sheets or blankets, hot water bottles, or massagers, which require electricity, boiling water, or batteries, our insoles are engineered with unique minerals that rapidly warm up in 60 seconds, gradually releasing warmth for up to 30 minutes. Feel the heat fading away? Heat Treat and