The Grom is designed for smaller children venturing onto the slopes. In-mould construction keeps weight to a minimum for all-day comfort, and the ePS foam provides shock absorption. A Custom Dial means fine-tuning of the fit is easy, Airflow channels produce good ventilation and the liner is removable and washable.Size guide:SmallMedium49-53cm53-56cmVenting: PassiveSizing system: AdjustableWeight: 320gConstruction: In-MouldSafety standard: eN 1077 Class B, ASTM F2040Additional safetySalomon's patented ePS 4D technology works like a crumple zone, maximising energy absorption and protecting from oblique and vertical shocks.VentingPassive ventilation is non-adjustable but effective at cooling the head, allowing hot air to escape easily.Salomons Airflow Concept uses built-in channels within the eFS 4D liner which allows an even temperature and constant airflow between your head, your helmet and your goggles.Sizing systemThe Custom Dial Fit System provides a quick, easy and effective adjustment for a precise and comfortable fit. Helmet shape is based on Salomons oval fit.ConstructionIn-Mould construction uses a lightweight PC shell fused with ePS liner to maximise protection and comfort. This method keeps the weight down for less stress on young bodies.Other featuresLiner can be removed and washed.