Description
The Electra Lifestyle Helmet has a durable ABS hardshell for protection and EPS foam liner for security and comfort.Size small fits circumference 48 cm – 54 cm and hat sizes 6 1/2 – 6 3/4Size medium fits circumference 55 cm – 58 cm and hat sizes 6 7/8 – 7 1/4The size large fits circumference 59 cm 61 cm and 7 3/8 7 5/8The small size generally fits children, while medium and large sizes fit adults