The Bottle Cover Is Soft And Stretchable. Visible Scale Is More Convenient To Use. It Helps To Protect The Bottle From Any Major Damage Even If It Falls Down. Specially The Glass Feeding Bottles It Comes In An Adorable And Cute Penguin Design. Ideal For Indoor And Outdoor Use The Bottle Cover Is Soft And Stretchable. Visible Scale Is More Convenient To Use It Is Made Using Cotton, Nylon And Spandex