The description provides important details about the customized glass bottle.

Here's a breakdown of the key information:

 Material: The bottle is made of glass, which is known for its durability and resistance to staining and odors. This material choice is associated with sustainability and the avoidance of plastic.

 Size: The bottle has a capacity of 18 ounces, making it suitable for holding a variety of beverages.

 Product Color: The bottle is described as "Clear," indicating its transparent appearance.

 BPA-Free: BPA (Bisphenol A) is a chemical often found in plastics that has raised health concerns. This bottle is labeled as BPA-free, reassuring users about its safety for holding beverages.

 Temperature Maintenance: The bottle is designed to keep beverages either cold or hot, emphasizing its versatility for different drink preferences.

 Stain and Odor Resistance: Glass is known for its resistance to staining and odors, ensuring that the bottle can maintain the quality of the fluids it holds over time.

 Promotional Use: The description suggests that this glass bottle is suitable for businesses, such as yoga studios and gyms, looking to promote their brand through sustainable drinks. It can likely be customized with branding or logos to enhance brand visibility.

 In summary, the customized glass bottle is presented as a durable and sustainable option for holding beverages. Its glass construction, along with being BPA-free, makes it a safe choice for users. It is versatile, capable of maintaining the temperature of drinks, and resistant to stains and odors. This bottle is positioned as an effective promotional item for businesses aiming to promote their brand in an eco-friendly way.