BottlesUp Glass reusable glass water bottles are both trendy and functional! Each glass bottle comes with three silicone rings in beautiful, vibrant colors. Glass is the purest, most healthy material to use for your beverages, and you truly can tell the difference! All BottlesUp Glass reusable water bottles are sourced and made in North America using a minimum of 75% post-consumer recycled glass, and their food-grade silicone accessories are produced in Maine. These bottles are designed by an architectural glass artist and are handcrafted, giving each bottle its own texture and brilliance.