When your family is all about Muck®, outfit your littlest one in a boot of his or her own. Muck Boots® Kids' My First Muck is a soft and cute first-time bootie. Made with 2mm neoprene for a flexible fit and soft comfort, this infant slip-on boot is perfect for the baby of the family. A heel tab and side hook-and-loop provide easy access. Faux fur lining adds warmth to keep tootsies toasty down to sub-freezing temps.