All cups are double walled vacuum sealed, and they will keep drinks cold or hot for 12-24 hours. Everything is made to order and can be personalized. If you would like anything changed or added (color, names, etc.), please make sure to leave a detailed note with the purchase! If there is no note, the cup will be made as shown in the image. You may also message me about a custom order at any time, and I will get back to you as soon as possible. Thank you!