Ergodyne Chill-Its 6634 Cooling Headband is $5.75 at Amazon, down from the store's own list price of $8.15. That's 29% off ($2.40 less). We last checked this price on Nov 7, 5:59 PM ET. Prices at the store can change at any time, so check before you buy. Brand: Ergodyne. Type: Safety & PPE. Picked for all trades.