Ordered a series 2 coffee cup for my wife, and when the lid was fitted it leaked constantly from the lid seal. I contacted Chilly’s and they sent a replacement lid that leaked as bad as the first one. I could actually get it to seal if I tightened it as hard as I could, the only issue was I couldn’t get the lid off it without soaking the whole unit it hot water for a while and only then would it release. Chilly actually refunded the money for the coffee cup which I threw in the bin, and I purchased a Chilly’s 2 water bottle instead - but still disappointed with that as the ring below the lid comes off when removing the lid. All in all a bad experience on what used to be a quality product company.