High-quality glass water bottles are a good choice as iced coffee cup and smoothie glass,suitable for holding fruit juice, drinks, iced tea and water, all of which will keep original taste. It is the perfect choice at home, on a trip or outdoor sports. Colorific silicone sleeve not only make the glass tumbler looks more beautiful, but also provide a soft and non-slip touch when holding it.When filling hot water, it has the function of preventing heat. All parts are free of BPA/BPS and top rack dishwasher-safe. Please do not heat in the microwave to prevent deformation and damage of the silicone sleeve caused by overheating. Do not freeze because rapid cooling and cold shrinkage will break the glass! Add your company name or logo and extend the reach of your brand to a new audience!