Yaktrax Hand Warmer, Body Warmer, and Toe Warmer Adventure Pack disposable warmers provides long-lasting warmth and is ideal for keeping your body warm when the temperature gets cold. Once opened, these odorless and environmentally-safe warmers begin working within minutes. Yaktrax Warmers contain natural ingredients including iron powder, water, salt, activated charcoal, and vermiculite. Yaktrax Body Warmers are ideal for keeping warm when camping, hunting, fishing, skiing, athletic events, and more. Pack includes: two pairs Hand and Body Warmers, two pairs Hand Warmers, two pairs Adhesive Toe Warmers