• Material: Bio-based  Phase Change Material

• Long lasting cooling :Constant Cooling  up to 2.5 hours

• 15°C/59F

 20°C/68F

 24°C/75F

 28°C/83F Available or customized

• Size: S(75± 5mm), M (95± 5mm), L (120±5mm)

• Easy to use: It takes about 10 minutes to cool the tube in ice water, in the  case of freezer it will cool in about 20 minutes

• Excellent wear and usability with ergonomic design

• All Sports & Outdoor Activities: Try to wear this neckband while walking your dog, golfing, fishing, playing basketball, cycling, hiking, driving, or even gardening. It will keep you cool and comfortable