One (1) Headzone WATERPROOF Helmets (incudes helmet chargers). Outer shell is made of ABS plastic, with EVA liner and 100% waterproof speakers. Helmet comes complete with chargers. Measure circumference of head for sizing.
S/M - 20.5" to 22.5" (52cm to 57cm)
L/XL - 23" to 24....
