MeyerDC combo packs and accessories include specialty hot & cold packs that are reusable and can be frozen or heated up for desired treatment. Have both hot & cold therapies on hand when you use gel-filled combo packs that withstand a wide range of temperatures. Flexible, portable and reusable combo packs are an economical solution for general pain relief. Combo hot & cold packs are easy to store and slip into compression sleeves and other therapeutic accessories.