These Gal Pals are designed for on-the-go cooling. Tuck them in your bra for cooling relief that's skin-safe and soothing. The plant-based phase change material naturally re-cools at room temperature; no refrigeration required! Helps relieve hot flashes, treat heat stress, and cool you down after workouts. Great for packing in your purse, gym bag, or diaper bag for cooling comfort whenever you need it (for headaches, fevers, first aid, etc.). Re-cools without refrigeration. Stays cool approx. 30 minutes against skin. Latex-free and made in the USA! To clean, wash with mild soap and water then air dry. Included are four (4) Gal Pals Go cooling bra inserts.