In tribute to the classic writing companion, this marbled Composition Notebook bottle welcomes the feeling of crisp fall days back-to-school. *Stays cold up to 24 hours, Keeps hot up to 12 hours* 17oz. Bottle = 10.39 x 2.80 W, 0.69 lbs. High-Grade 18/8 Stainless Steel. BPA-free. Triple-Walled for maximum insulation, leaving no condensation on the exterior.