Comparison of Commercially Available Disposable Chemical Hand and Foot Warmers - William A. Sands, Wendy L. Kimmel, Brittany R. Wurtz, Michael H. Stone, Jeni R. McNeal, 2009
GRABBER Einlegesohlen Fußwärmer, 4,40 €
Amazon.com: Grabber Performance Peel N Stick Body Warmer (1 warmer) : Sports & Outdoors
6) pair Grabber Mycoal Small Medium Foot Warmer Insoles FWSMES | eBay