BBBYO Premium Double Wall Insulated Stainless Steel Water Bottle + Protective Carry Cover 17oz Highest Grade 18/8 Stainless Steel - BPA Free, durable and sturdy, lasts a lifetime. Cold drinks stay cold for more than 24 hours, hot coffee, hot chocolate stay piping hot for 12 hours. No condensation or sweating; wont leak or rust. Thick 5mm protective neoprene cover cushions your Future Bottle plus a carry handle for portability. Perfect for the gym, beach, school, office, camping and hiking. Also great for keeping your picnic wine chilled!