The original lid my mug came with split down the middle. I purchased a replacement lid with the sliding tab to close, which was an upgrade from the original lid with an opening, no cover. That mysteriously broke within a few months, although my bike did fall over with the mug in the beverage carrier, so maybe that caused a chip that spread. I decided to get 3 replacements with the $15 off your first order coupon so I don’t have to mess around with shipping each time they break (although I’m hoping it doesn’t happen again any time soon!).