1.DOUBLE WALL DESIGN. Our Stainless Steel Vacuum Flask is a premium, double walled vacuum flask with corrosion resistant body. 2.EXCELLENT INSULATION PROPERTIES. Keep Drinks Cold 24 Hrs, Hot 12 Hrs, Our Bottle Is Toxin-free, Food Grade Stainless Steel On Both Inside And Outside Walls! 3.EXCELLENT DESIGN. Spout Lid allows you to drink right from the spout without removing the lid Durable carry handle makes it easy to take your favorite drink on the go 4.ANYWHERE IT WILL BE A GOOD COMPANION FOR YOU. In the car, on the beach, at the gym, road trip, hiking, camping, working, home & of course lunch boxes! 5. GREAT SERVICE. We have spend a long time to design this item we have confident that you would love this lovely sport bottle. If you are not satisfaild with this item after you purchased it contact us we will give you a full refund immediately.