4 pairs of socks warmer x 2 bags Total of 8 pairs. I used one from each bag. I have not opened the individual warmers. Expiration date is 2026.4. I opened the storage bag in December. Since the storage bag has been opened, I cannot guarantee that the warmers will last as long as stated. Please use them with this in mind. I am giving these away because I don't need them. Price reduction is possible.