Loved using this as it is genuinely leak proof and I can toss it all around without a worry about it leaking. I have several times just turned it over while it was full in my hands, just to watch the panic on my friend's faces before it turns into surprise at how good the seal is. Unfortunately, I've lost it! So I'm back to get another one.

This cup is amazing. Keeps my drink hot for an unreasonably long time, have not thrown out a drink because it went cold since using this cup. No leakage at all. And the colour is bright!

Best cup ever - quality, functionality and style.