These reusable glass coffee cups are not for everyone, but as long as you have good dexterity and don’t use them with wet hands, you should be fine. Good glass coffee cups have cool silicone or other bands around the body anyway, so you don’t burn your hands and they keep cool. The glass is toughened (kind of like those old Pyrex dishes). But this does not make them unbreakable, so handle with care.
Most coffee bars now accept reusable cups, and often give discounts (after all, it saves them money by not having to buy disposable cups). If you have to use disposable coffee cups for hygiene reasons, send them for recycling at Simply Cups or Veolia.
Atlas & Ortos has a silicone sleeve to keep your hands cool. It’s available in several colours: grey, navy, black, sky blue or cream. This cup is standard takeaway size to be barista-friendly (may coffee shops offer discounts).
Yuggen Glass Coffee Cup with cork sleeve, is ideal to keep your hands cool, and your drink hot. In mint or black, it’s dishwasher-safe (just remove the cork band) and complies with FDA and European food-grade standards. Cork is a material that grows in Mediterranean forests. Trees are not felled, to make cork.