Hello. JOCO is a like-minded community of conscientious thinkers. We are devoted to making your daily coffee or tea better with smart and friendly products. JOCO cups are made from high quality borosilicate glass, making them lightweight and thermal shock resistant. JOCO cups do not crack or shatter when boiling water is filled in. Lesser forms of glass, including tempered and ordinary glass, have been known to unpredictably explode when subjected to extreme changes in temperature. Borosilicate glass removes the high risk of this happening to your reusable cup. Their superior durability also makes them microwave and dishwasher safe. Borosilicate is non-porous so it won't taint the flavor of your favorite beverage. JOCO cups have been tested and certified to be free of harmful chemical nasties including all types of lead, BPA, and cadmium and they are food grade safe. JOCO cups are compliant with FDA, REACH and LFGB regulations. Each JOCO cup is wrapped in a silicone sleeve to keep your coffee or tea at the optimal temperature, provide grip and keep your hands cool. JOCO cups are sealed with an ergonomic splash proof lid. The specially designed JOCO nose dome ensures no more embarrassing nose-to-lid collisions due to lack of clearance for that beak of yours. Packaged in a 100% recyclable and reusable paper canister, these barista friendly cups are modelled after disposable paper cups and available in three ideal sizes, 8oz, 12oz and 16oz, and an array of bright and vintage colors. JOCO aspire to craft the best products to enhance your daily ritual. The JOCO reusable glass cup reduces preventable waste and is a fine looking, forward thinking product, that keeps Mother Nature happy. We would like to applaud you for choosing to enjoy your coffee and tea responsibly in this first-class cup. Ditch paper go for glass.