Material: Made from high borosilicate glass, this tumbler with a lid and straw can withstand temperatures up to 27°F. Avoid rapid temperature changes to prevent breakage. The straw is also crafted from lead-free high borosilicate glass, ensuring safety and health protection.

Dual-Purpose Design: This versatile glass cup allows you to drink from the straw or directly from the mouth opening by lifting the small lid. A rubber ring seals the lid to effectively prevent leaks.

Lightweight & Portable: Ergonomically designed for easy handling by any hand size. The anti-scalding and anti-cold leather case enhances its sophisticated look, making it perfect for outdoor travel.

Multi-Purpose Use: Ideal for various beverages such as water, juice, iced tea, cold brew coffee, and beer.