This is a handmade ceramic keep cup. -8oz -Slate glaze Take it into any coffee shop and instead of a disposable takeaway cup, you can use your own favorite cup, and often get a discount too! You will also be helping stop the use of single-use throw-away plastic which is so bad for our planet! This cup is hand thrown on my potters' wheel, then trimmed and stamped with my maker's mark. It then has its first firing in the kiln. Next, it will be glazed and then fired again to 1255c. It is then fitted with a leather sleeve which I hand cut for every cup (so you can comfortably carry your cup when it has piping hot liquid in it) and a silicone lid to finish. The leather I get from the local leatherworker, mostly scraps, and offcuts that can't be used anymore. The cup its self is dishwasher safe but it's kinder to hand wash. The silicone lid and leather sleeve are hand wash only.