Why Choose This Thermos: This slim and skinny thermos bottle is esay to carry, you can easily put into you backpack, purse, gym bag or suitcase.You can take it out when you have a water source. You will do not need to use a one-time cup or another person's cup, which can protect the environment and prevent cross infection.Double Wall Vacuum Insulation: guarantees excellent temperature retention. It can keep ice cold drinks for about 12 hours, and piping hot drinks for 6 hours.Food Grade 18/10 Stainless Steel: This wide mouth thermos bottle is made of high quality food grade SUS 316 18/10 stainless steel. 100% Safe for everyday use.No Leak: The inclusion bottle is equipped with a spiral leak-leak-proof device, no matter how tilted and shakes, the liquid inside the bottle will not leak.Perfect Size: 1 inches wide and 6 inches tall. 150 ml / 5 ounce capacity. You can comfortably carry the bottle in your hand.