Mountgreatness Insulated Stainless Steel Water Bottle, 40 Oz, Double Wall, Rubber Ring, Wide Mouth Opening, BPA Free, Cold 24 Hrs / Hot 12 Hrs DOUBLE WALL VACUUM INSULATED - Premium 18/8 stainless steel BPA FREE water bottle. Keeps drinks 24 Hours Cold, 12 Hours Hot. The best solution for your drinks to stay fresh! WIDE MOUTH OPENING  Made for big ice cubes and easy access. Easy filling and cleaning. RUBBER RING - This bottle will never slip from your hand! Easy to seal and even easier to open! HUGE CAPACITY - Ideal for a gym, tennis court, or when you are on a beach and you just want to make sure you will have plenty of water to drink! 100% GUARANTEED SATISFACTION - We offer a LIFETIME WARRANTY against any manufacturer defects!