[24 Oz Tumbler] RSPIC Coolers Double Wall Vacuum Insulated Tumbler Cups Stainless Steel Travel Tumbler Rambler 20oz Coffee Mug with Lid - Keeps Drinks Cold and Hot

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This is a 24 oz stainless steel tumbler that comes with a lid that can open and close to be able to keep the bugs out of your drink when using this outside. The lid is pretty easy to get off of the tumbler. The cup is non-rusting and non-toxic. This is easy to clean the lid is dishwasher safe and the tumbler can be hand washed. This keeps your cold drinks cold for about 24 hours and your hot ones hot up to 6 hours. My husband used this without ice and placed a cold drink in it and kept it in the vehicle while we went shopping inside of Wal-Mart and when we came out it was still cold. 

Disclaimer: I received this for free in return for my unbiased, honest opinion.