What makes bkr so special? bkr is the original––an innovative, thoughtful accumulation of details that together feel like love. We're perfectionists focused on hydration. We made the world's best glass water bottle, an insanely hydrating lip balm and a cap to connect it to your bkr, a double wall insulated glass + silicone tumbler, and also have soft custom straws and straw caps for the best sip ever. Welcome to bkr, you won't want to leave.