Contigo AUTOSEAL Chill, 24oz, SS Monaco Stainless Steel Water Bottle

This is the most popular feature. Thanks to the exclusive AUTOSEAL® technology (automatically locks when the button is not pressed) or the safety lock cap (like Jackson/Cortland), the bottle is virtually leak-proof and will not spill even when tipped over or left in a bag/backpack. The Contigo 24 oz bottle (usually the Autoseal Chill or Cortland Chill) is made of double-walled stainless steel, vacuum-insulated (Thermalock), which keeps drinks cold for a long time. Many reviews say it keeps drinks cold, and even ice, for 12 to 24 hours. Made from high-quality materials, BPA-free (Bisphenol A), safe for health. • Stainless steel versions are rated as very durable, impact-resistant, and less prone to dents. Tritan plastic versions are also praised for being durable and not smelling of plastic.

I didn't think I'd use this as much as I do, but I love it. It keeps ice into a second day. It's tall and a bit heavy, but it's quite easy to carry around by its top handle, and carries 24 oz of liquid. I own other Contigo travel bottles and, like my others, this bottle is very well made. Looks nice, too. I bought the plain stainless steel because colored models are coated, and after a while that coating starts to get scratched. The stainless always looks neat. There's a good lock on the cap to keep it from spilling in your bag. You do have to be sure you've screwed the cap on correctly, though (oops!).