This vintage Optimus International hand pocket warmer is a must-have for any winter sports enthusiast. Its adjustable temperature feature allows for customizable warmth, while its compact size makes it easy to carry in your pockets or gloves. The silver color adds a touch of style to your winter sport gear. Made in the United States, this hand warmer is a reliable and durable option for keeping your hands warm during your winter sports activities. It is perfect for those who enjoy skiing, snowboarding, or snowshoeing. This item falls under the categories of hand and foot warmers, accessories, and winter sports gear.