WARMER KEEPER - 40 pair individual large size foot warmer heat packs that provide everyday warmth and are ideal for keeping your body warm when the temperature gets cold. Disposable foot warmers with no adhesive, more quality than foot heat pack with adhesive and protable to put in different style shoes. SAY GOODBYE TO COLD WINTER - Insole foot warmers protect you from being frostbitten in chilly winter. Great for outdoor sporting events, hunting & fishing, camping & hiking, jogging or walking the dog. Convenient, compact, portable. Perfect gift for people who work outside in the cold winter. QUALITY VERSATILE WARM PACK - The hot feet insoles combination of the ingredients has been specially formulated to ensure a constant and comforting heat for a wide variety of uses. They’re available in several styles designed for your hands, feet and body. AIR ACTIVATED - Remove warmer from outer package, air activated, warmer heats up in 3-5 minutes. If heat decreases, expose warmer to air and shake. After using, dispose with regular garbage. Eco-friendly iron ingredients. SAFE, NATURAL LONG-LASTING HEAT - Odorless, disposable, single-use item, one pair per package, ultra thin and full length(9.8'' x 3.3'') of insole for entire foot warmth. Do not use it when bare foot. Thanks for your concern - We have changed the product packaging and upgraded the product, so there may be a difference between the old and new packaging when you receive the goods.

The First Choice in Winter

The warmers is very useful to keep feet warm in cold temperature. However, if used in shoes with bad breath-ability, the temperature of heating piece will be low. Then just take off shoes for a while to make heating piece meets air, the warmer will heat again.

Easy Usage

Simply open the package, peel away the paper backing; stick the warmers on the bottom of your socks. No need to do external heat. If it does not work, please shake or knead several times to make them react with air adequately. Besides, these warmers can not be stone cold, but stay warm literally and really toasty. The maximum temperature is 63 degrees Celsius. The average temperature is around 53 degrees.

Functions

Suitable for cold-proof in chill temperature, keeping warm in outdoors.

Prevent frostbite, control beriberi.

Encourage blood circulation in case of cold feet.

Release and comfort minor arthritis.