Multi-layer structure design: The inner layer is made of 304 stainless steel and is designed with a multi-channel insulation coating in the center. The outer layer of rubber paint spray process provides a comfortable, delicate and non-slip feel
2. 95°C hot water can stay above 45°C after 10 hours. Cold water at 5°C and stay under 15°C after 10 hours
3. Various colors are available, fashion appearance, color is delicate and novel, perfect gift