I use frozen inserts , 6 inches by about 2 inches wide meant to be frozen. In a bandana around my neck. And a flexible frozen insert ( looks like a small sheet of bubble wrap) in a bandana around my head under my hat. Do I look odd, don't care I am cool enough to work. FYI the insert in a bandana also helps with those "Power Surges" we ladies of a cert age get. Can get these on Amazon.
I use frozen inserts , 6 inches by about 2 inches wide meant to be frozen. In a bandana around my neck. And a flexible frozen insert ( looks like a small sheet of bubble wrap) in a bandana around my head under my hat. Do I look odd, don't care I am cool enough to work. FYI the insert in a bandana also helps with those "Power Surges" we ladies of a cert age get. Can get these on Amazon.