Warmies Cozy Microwaveable Boots in Greyfrom £24.99 up to £29.99 Compare prices3→If you're looking for a pair of boots that will keep your feet warm and toasty all winter long, look no further than our Warmies Boots! Made with cozy fleece and filled with lavender-scented grains, t more→hese boots can be heated in the microwave for a quick and easy way to keep your feet warm. They're also great for summer days when you need a little relief from the heat - just pop them in the freezer for a cooling effect. UK sizes 3-7. | Warmies Cozy Microwaveable Boots in Grey