|After I stretch, I have to ice my hip/thigh.|
All you need is 1 part rubbing alcohol to 3 parts water inside a freezer bag. (To fill my bag, I did 6 parts water to 2 parts rubbing alcohol.) The rubbing alcohol gets cold but it doesn't freeze hard, which allows you to manipulate it. Science! My ice pack is green because the rubbing alcohol I purchased was green. It was green because it was for massage and contained menthol or something minty. I just picked it up and went with it. Now my ice pack smells minty, which is nice to smell while I'm lying on my side on my yoga mat for 20 minutes.
Click on the picture below for all the easy-peasy details: