Parents, these Acton Rock winter boots are seriously tough enough to handle whatever your kids can throw at them! Made with waterproof synthetic leather and hydrophobic ripstop nylon, plus sealed seams in the vamp area, these boots will keep little feet dry in snow, slush, and puddles. The removable triple density insulation liner is the real star though - it provides awesome warmth without making the boots bulky, and you can take it out to dry or wash as needed. The EVA shell is lightweight and flexible, so kids can still run and play comfortably, while the synthetic rubber outsole gives good traction on slippery surfaces. The laced boot with barrel lock closure system makes them easy to get on and off while ensuring a secure fit, and the reflective inserts add visibility during those short winter days. The Size 5 in black should fit most kids in that range, but definitely measure your child's foot and check Acton's size chart since kids' feet grow so quickly. Replacement felt liners are available separately (model A4513 B76) when the originals wear out, which is great for extending the life of the boots. Whether your kids are building snowmen, waiting for the school bus, or just playing in the backyard, these boots provide the warmth, waterproof protection, and durability that active kids need during cold weather. They're built to last through multiple seasons of winter fun!