These 500ml double-walled, vacuum-insulated water bottles are made of 18/8 stainless steel and are designed to keep drinks cold for up to 24 hours and hot for up to 6 hours. The double-wall construction also prevents condensation and keeps the exterior at a comfortable temperature to hold. These bottles are durable, corrosion-resistant, and a more eco-friendly alternative to single-use plastic bottles. They feature a leak-proof screw-top lid and are available in a variety of colors. 
Features:
Material: 18/8 stainless steel 
Insulation: Double-walled, vacuum-insulated 
Capacity: 500ml / 17 fl oz 
Temperature Retention: Keeps drinks cold for up to 24 hours and hot for up to 6 hours 
Closure: Leak-proof screw-top lid 
Additional Features:
Durable and shatter-resistant 
BPA-free 
Suitable for standard size cup holders 
Easy to clean 
Care Instructions: It is recommended to wash the bottle daily to prevent bacterial growth. Avoid putting in dry ice, carbonated beverages, milk, fruit juice, or salty liquids.