The Essentials Helmet is an ABS shelled foam padded helmet from SFR. SFR specialise in everything roller skate from quads to inline. They also produce their own line of safety gear and carrying equipment. Features: ABS outer shell. Ventilation holes. Die cut comfort pads. Nylon snap buckles. Comes with foam inserts to cover a 4cm size range. Measurements: XXSmall/XSmall: 49cm - 52cm Small/Medium: 53cm - 56cm Large/Extra Large: 57cm - 60cm SFR Essentials Helmet Metallic Red