Warm shaker fleece upper keeps your infant feet in comfort inside and out. Gentle elastic at the ankle and hook and loop closure design for easy on and off. Upgrade lightweight lugged TR soles are softer with excellent non-slip and abrasion performance. Baby boots shoes are easy to clean, hand & machine washable. Five Size for Choice : Fits up to 0-9 Month (3.5), 9-12 Month (4.5), 12-15 Month (5), 15-18 Month (6), 18-24 Month (6.5).