غطاء V

I was skeptical that a lid alone could make much difference, but this thing actually holds heat noticeably longer than the flat cap that came with my bottle. The double wall design at the mouth really does seem to stop that warmth from escaping right where you sip. Fits my wide mouth bottle snug wit

My coffee was still steaming after a four-hour drive, which never happened with my old flat lid. The double wall insulation at the mouth really does make a difference.

I was skeptical about how much difference a lid could make, but this one actually keeps my coffee hot for hours thanks to that extra insulation layer at the opening.