Voberry Infant Baby Toddler Prewalker First Walking Girls Boys Crib Shoes Soft Boots Recommended Age--3-6 months; Insole Length--11.5cm/4.5" Recommended Age--6-9 months; Insole Length-- 12cm/4.7" Recommended Age--9-12 months; Insole Length--12.5cm/4.9" Material:Cotton polyester fabric,Soft material makes baby feel very warm and comfortable Comfortable,Perfect Gift For your Baby