Détails du produit

Inside width: approx. 10cm, outside width: approx. 15cm, neck circumference: approx. 34cm Tube: TPU, Inner material: PCM (temperature control - heat absorbing material) Great for keeping cool during your commute to work or school Can be used without putting in the refrigerator as long as the environment is below 26°C No condensation so clothes won't get wet Stays cool for approx. 60 minutes (※ Varies depending on usage environment) Uses new cooling material "PCM", can be used repeatedly