Crafted from borosilicate glass, this tumbler offers an odor-free, stain-free, and clean-tasting experience, making it ideal for enjoying a wide range of beverages. The wood friction-fit bamboo lid is securely stationed on top, preventing leaks and spills while adding a natural, elegant touch to your drinkware collection.The tumbler is wrapped in a vibrant, no-slip silicone sleeve that not only provides a secure grip but also helps in identifying your glass among others. The protective sleeve makes it ideal for outdoor use.