Dr. Brown's Convertible Bottle Tote holds up to four bottles. It is designed for your favorite baby bottles including all sizes of Dr. Brown's bottles. The Convertible Bottle Tote folds over and fastens for a snug fit when storing shorter bottles or other small items like baby's food and snacks. Easily folds flat when not in use. Made with neoprene for a water resistant, insulated, and cushioned bottle cooler, with an easy to clean interior and removable ice pack. Cleaning Instructions: Wipe clean only; do not immerse in water. Material: Outer Shell is 100% Neoprene and Lining is 100% Vinyl. Made in China. Reusable Ice Pack Instructions: Place Ice Pack flat in freezer for at least 2 hours until frozen. Remove from freezer and place Ice Pack inside an insulated tote next to cooled bottles and foos. Ice Pack will retain cold temperature for several hours. Store in freezer when not in use.