The Squirt is an in-mold helmet with integrated ratchet to adjust the sizing. Further, it comes with a magnetic locking buckle, and open slots for cooling. Inside the helmet, this helmet features comfortable cooling pads and a wide adjustment range throughout straps, ratchet, padding etc. When your child will have a comforable ride, it helps making sure they want to wear it too. Specs Specially designed for kids Light-weight thermo-molded construction 13 airflow vents Plenty of padding inside the helmet Dial-to-fit retention assembly for a customized fit FIDLOCK magnetic buckles Premium Soft-touch finishes Premium Matte colors Super light to add comfort for the kids CPSC and CSPSIA approved Sizing: 50-54 cm (Child) Weight: 0.53 lbs