Application、
1. Running 2.Riding 3. Climbing 4. More sports
Usage Method
Step1: Check the neck cooler, make sure it is not broken, and put it into water for 3-4 minutes.
Step2: Take the neck cooler out from water, tie the product around you neck, and the cooling feeling will go through your body.
Step3: If you feel the neck cooler is not cool enough, just reload step1/2.