12-Hour Temperature Lock: Keeps your drinks at the perfect temperature (hot or cold) for up to 12 hours. Best Quality (316 SS): The interior is made of 316 stainless steel, which is completely safe, non-toxic, and rust-resistant. Innovative Lid: Features both a straw and a direct-drink spout, plus a locking mechanism to prevent spills. Secure Grip & Durability: Anti-slip silicone grip and a strong base make it extra stable. Portable Design: Lightweight and easy to carry, perfect for school or travel.