Stainless Steel Material: The travel mug is made of high-hardness stainless steel, durable and sturdy, highly resistant to pressure, not easy to bend, and wear-resistant. Insulated Water Bottles: Vacuum insulation for hot drinks up to 6 hours or more, and cold drinks up to 12 hours or more, to keep your favorite beverages tasting fresh. The mug with straw and handle is perfect for hot coffee, iced water, beer, cocktails, and more. Leak-Proof Water Bottle: This sports bottle can be easily disassembled, easy to clean, and the mug lid is sealed to prevent leakage so you can use it with confidence. Taking these travel bottles on the go is easy and mess-free, without watermarks or slippery hands. Large Capacity with Straw and Handle: The 40 oz mug for hot drinks is large enough to hold all the water you need. It features an ergonomic, non-slip handle for comfortable use, ideal for work, home, school, and outdoor activities. Wide Range of Uses: The water bottle easily fits in your bag or your vehicle's cup holder. The cups can be used as wine glasses, champagne glasses, water glasses, or travel mugs for sports fans. Ideal for parties, picnics, car trips, beach, pool, camping, hiking, etc.