100% BPA-FREE: Made of High-quality food grade 18/8 304 stainless steel both inside and outside walls. Abrasive texture maximizes the reduction of surface paint shedding or bottle cracking. Eco-friendly, shockproof and shatter proof, rust and leak proof, scratching resistance, double wall, no sweat, no condensation on your desk any more. Food grade silicone lip, guarantee no leak with the cap on. If you have any problem, please contact us. We will give you a satisfactory reply. KEEP HOT & COLD: Keep your water hot or cold. Double wall vacuum insulated technology design make it keep hot up to 12 hours, keep cold up to 24 hours. Big bonus for big enough mouth (1.3 inch) to fit ice cubes. Now, enjoy cool and fresh in hot summer, enjoy the warmth in cold winter. Perfect for office workers, students, sports, outdoor enthusiasts, breast-feeding mothers, etc. EASY TO CARRY & EASY TO CLEAN : 17oz (500ml) Cola shape, easy and comfortable in hand and drink, the right size helps you to keep hydrated outdoors and fits in your bag easily. Have daily cleaning with our sponge cleaning brush, special design sponge bristle with 11" durable handle could easy to clean the entire internal surface of bottles, easily reach any place including hard-to-reach corners and bottoms. OCCASIONS: You can use it in all type of occasion like sports, go to work, go to beach, school, office, picnic, hiking, camping, road trips, eat lunch out, on the road for soup, traveling, trip, driving, mountaineering, backpacking, hot yoga, gym, fitness. For popular needs, we design in lightweight, sleek, tough, fits most car cup holders, bottle cages and your bag. BONUS: Fashionable colors are suitable for men, women, old and kids of all ages, any dress style. Gift Wrapping, best gift for your family or friends on anniversary, birthday, festival, father’s day, mother’s day, Halloween, Christmas,Thanksgiving Day.