The classic bottle by Stanley is a perfect addition for someone who is prone to go hiking no matter what the weather. For when you need a mid hike pick me up you can rely in this bottle to deliver whether you have planned on a hot drink in the winter or a cold drink in the summer., 18/8 Stainless steel double-wall vacuum insulation. Naturally BPA-Free., Leakproof + Packable. Insulated lid doubles as cup., Dishwasher Safe. Stainless Steel insulated lid., New pour thru stopper design makes for a smoother pour. Updated double wall design makes the bottle stronger and increases the capacity., Improved handle makes for a better grip.