This 40oz tumbler offers a perfect blend of style, durability, and convenience, making it your go-to drinkware for both hot and cold beverages. Crafted from high-quality, BPA-free stainless steel, it features advanced double-wall vacuum insulation to keep your drinks icy cold for up to 24 hours or piping hot for up to 12 hours. The wide mouth design allows for easy filling, cleaning, and adding ice cubes, while the spill-resistant, push-on lid with a secure-fit straw ensures mess-free sipping.