We suggest this product for migraine and headache sufferers.
Hot/cold therapy. Provides moist heat or soothing cold
Will not leak if punctured
Durable, can be used repeatedly
Approximate hat size 8'' & smaller. To figure, take flexible tape measure and measure forehead to back of head. That number equals inches. Take inches and divide by pie - (3.14) and that equals hat size. Does not have a removable cover. Does have water resistant material.

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Shipping Weight: 2 pounds (View shipping rates and policies)

ASIN : B0070P3FPK