The Stirling 18 oz Glass Tumbler is designed for those who value both style and functionality. Featuring a durable silicone sleeve for a comfortable grip and a matching polypropylene straw, this tumbler enhances your hydration experience. With its high-quality borosilicate glass construction, it’s perfect for hand washing and is BPA-free. The push-on bamboo lid ensures a secure fit, making it compatible with most car cup holders, ideal for on-the-go lifestyles.