Size Guide

Just1 J39 Thruster White / Fluo Orange / Blue

The Just1 J39 Thruster White / Fluo Orange / Blue helmet brings vivid styling and practical performance together for riders who want standout looks without compromising on safety or comfort. This Just1 J39 Thruster White / Fluo Orange / Blue colourway features striking fluo orange accents balanced by crisp white and deep blue elements, creating a modern, energetic appearance. Built with a high strength thermoplastic resin shell and available in two shell sizes, the helmet offers a secure fit across a wide range of head sizes. The integrated J.1.E.R Emergency removal system ensures that the cheek pads can be safely and quickly removed after an incident, while the fully removable and washable interior keeps the helmet fresh for everyday use. Ventilation is efficient with eight air inlets and six outlets, helping to maintain airflow during long rides. The helmet is ECE22.06 approved and uses a Double D locking system for reliable fastening. Whether commuting or exploring twisty lanes, the Just1 J39 Thruster White / Fluo Orange / Blue delivers a confident combination of protection, ventilation and eye-catching design.

Key Features:

• High strength thermoplastic resin shell for durable impact resistance
• ECE22.06 Approved for recognised European safety standards
• Available in 2 shell sizes and 3 EPS sizes to optimise fit
• J.1.E.R Emergency removal system for safe cheek pad extraction after an accident
• Removable and washable interior padding to maintain hygiene and freshness
• 8 air inlets and 6 air outlets to ensure effective ventilation and rider comfort
• Double D locking system for a secure, dependable closure
• Shell 1 covers sizes S / M; Shell 2 covers sizes L / XL for consistent protection