Stanley The Iceflow ™ Flip Straw 2.0 Thermos Cup with Straw 0,70 Lt 2.0 0.7L / 24oz Colorful

Hello, there is a high probability of water leakage when it is on its side. This model is not leak-proof due to its lid structure, it is designed more for use in an upright position. If you are going to put it in a bag or suitcase, it is recommended to keep it upright. We are happy to help if you have any other questions.

Hello, yes, The IceFlow Bottle Flip Straw 2.0 is made of high quality 18/8 stainless steel. The main body of the product, the interior and exterior are all steel. The material used in the lid and pipette part is durable polymer, which allows you to hold it comfortably. Thanks to its double-walled vacuum insulation, it keeps your drinks cold for a long time. With Stanley's quality and durability, you will get a thermos that you can use for many years.