Summer Cool Plastic Coke Water Bottle

This type of drinkware is designed with a double wall containing a freezable gel or liquid to keep beverages cold longer without diluting them.     

• For best results, the mug is typically placed in a freezer for 2-4 hours until the inner liquid freezes solid.     
• The product is usually made of BPA-free plastic and often comes with a straw.     
• Capacities vary, with common sizes around 350ml to 500ml available from various retailers.