The Better Home 750ml | Insulated Thermosteel Bottle | Hot and Cold Water Bottle for Office, Gym, School | Leakproof | Vacuum Insulated Water Bottles | Easy Carry Flask for Kids/Adults | Blue EXCELLENT INSULATION: Double-walled vacuum design keeps beverages hot/cold. ATTRACTIVE DESIGN: Aesthetic, functional design, durable construction. FOR MULTIPLE USE CASES: Suitable for trekking, hiking, traveling, gifting. FUNCTIONALITY: Maintains desired temperature, excellent quality. Affordable. Effective cooling.