Material: 100% Silicone Features: 1. Your baby can grab, hold and avoid slippage when feeding from a glass bottle encased in a colorful Siliskin. Help protect the bottle from breakage and also prevent bumping into other articles in your bag. 2. This silicone sleeve is free of plastics and is 100% non-toxic and Microwave safe. The bottle and the sleeve can be boiled or put in the dishwasher together. 3. FDA approved and recyclable. The sleeve provides a good gripping surface during feeding and also a great tactile experience for your baby. 4. Babylife is proud to give you a choice in using a baby bottle that is free of bisphenol A. 5. Many colours for your choice