Our cozie fleece gripper booties for baby are a perfect example of function meeting fashion and comfort. They feature our signature two-snap secure fit to keep them on baby's feet, and the super soft cozie fleece makes them comfortable and adorable. The gripper feature on the bottom is designed to help new walkers grip slippery floors when your little one is just starting to take those momentous first steps. Details: Shell: 70% Cotton / 30% Polyester; Lining: 100% Cotton; Machine washable; Imported; Size Chart Size Fit Foot Length 3M 0 to 3 Months up to 3.25" 6M 3 to 6 Months 3.75" 12M 6 to 12 Months 4.25" 18M 12 to 18 Months 4.5" 24M 18 to 24 Months 5".