Glass Guardian (Luxury Purple)- Bottle cover for glass bottles. Glass bottle cover is eco-friendly and fits a variety of glass bottles! Eco-friendly. Reusable silicone bottle sleeve for protection of glass beverage containers 100 % Medical-grade silicone. Superior quality! Non-slip silicone sleeve offers secure grip, insulation, and helps protect against breakage BPA/BPS-free, does not have phthalates, PVC, or polycarbonates. Fits bottles 2.5"-3" in diameter. Fits most water bottles, jars, wine bottles, beverage glasses.