Disposable Handwarmers

My hands are cold from November to May,  even went to the doc about it, he says nothing I can do about it, my body is just over sensitive to limiting blood flow to extremities in cold weather.

Anyhow I found an old pac of MYCOAL/Grabber hand warmers, says Validity Date 1999.

They are activated by just air and these were 16 yrs old at least. So I opened one just check, figured even in their plastic pac they'd be shot by now, but no,  still works,

Another item to carry for sturgeon fishing.