I love these coffee glasses! They’re heavy enough made  and can handle hot/cold shock without a single crack. It’s such a joy to drink from these cups every morning it really brings a smile to this stay at home homeschooling mommas face! Joyjolt aroma double wall coffee glasses are perfect for me. The coffee stays warmer than in my usual daily use stainless steel mug. A little beauty in my morning is just what I need!