S.T. Airy Airly Like a plaster you're not even wearing, a body warmer Contents: 8 pieces per bag x 3 bags Expiration date: 2028.4 Maximum temperature: 56°C Average temperature: 47°C Duration: 8 hours (Maintains a temperature of 40°C or higher for this duration) Size: 13cm x 9.5cm Made in Japan: Manufactured in an ISO9001 certified factory Features of Airy * Approximately 25% lighter and 20% thinner than conventional body warmers (compared to Haru Onpax) * Less noticeable even when worn over clothing * Mild warmth lasts for 8 hours