S/M | 49-55cm
L/XL | 55-61cm
The ALK13 Krypton helmet uses Outmold technology:
the addition of a urethane shell and ultra-light polystyrene, for optimal protection and comfort.
A helmet, two sizes (S and M) due to the additional foams provided in the box and a perfect fit to each head with the help of the straps.
Helmet adapted to the practice of urban sliding sports: SKATEBOARD, MTB, BMX, INLINE ROLLER, SCOOTER …