Precision fit and advanced technology Just1 helmet was developed and designed with the primary goals of creating the safest and most comfortable motocross helmet for a rider. Perfect fit is the essential element in helmet performance. The finest and technically advanced materials are used in the production of Just1 helmets. The external shell is made of full carbon fiber. This makes the helmet extremely rigid and incredibly light weight. Just1 has two exterior shell sizes ensuring proper fit to weight ratio for safety and stability. 2 sizes external shell full Carbon fiber high rigidity Anatomical structure with the exclusive “N.B.F.F.” system (Neck Brace Front Fit) Removable and washable inner lining, highly breathable fabrics and hygienically treated Removable cheek pads with the “J.1.E.R.” (JUST 1 Emergency Remove) Inside chin guard with air vents Protective internal polystyrene foam shell with air channels Multiple air vents with anti-intrusion aluminum nets Multiple top and rear air extractors Adjustable peak with air vents Double-D retention system ECE Homologation Helmet weight from 1100 GR. +/- 50 GR Air Tech Ventilation is essential. With mouth and eyebrow massive and multiple air vents system. Just1 is designed to maximize airflow to your head. Tried and tested ventilation that allows for proper extraction of heat from the helmet. Allowing for a cooler ride in even warm weather conditions. Attention was also paid to the mental membrane integrated on the chin air vent. Which makes it less likely that rubble and flying debris could penetrate those areas. Innerlining The exclusive inner linings of the Just1 helmets are made with breathable materials that incorporate an anti microbial hygienic treatment. The liner is fully removable and washable. The liner was designed in conjuction with the clavicle flair to make the helmet easy to put on. It allows the user to focus closely on the fit of the crown portion of the helmet first.Note Please note that as long as nothing else is written in the article description, all helmets that have a visor as standard will be delivered with a clear one, even if it is shown differently.