Size Guide

Just1 J39 Revo Blue / Fluo Yellow / Gloss Black

The Just1 J39 Revo Blue / Fluo Yellow / Gloss Black is a striking lightweight helmet that blends vibrant style with practical protection. The Revo Blue and fluo yellow accents on a gloss black base deliver high visibility and a contemporary look for urban and commuter riders. The helmet’s thermoplastic resin shell and advanced interior engineering offer reliable impact management while remaining comfortable for longer rides. This Just1 J39 Revo provides excellent ventilation and a washable lining that keeps the interior fresh after repeated use. With ECE 22.06 approval, the helmet meets current safety standards and is designed for riders wanting both bold aesthetics and sound performance.

Featuring the J.1.E.R emergency removal system, this Just1 J39 Revo helps first responders remove cheek pads quickly and safely in the event of an incident. Ventilation is handled by multiple air inlets and outlets to maintain airflow across the head, and the double D locking system ensures a secure fit. The helmet comes in two shell sizes to better match head shapes across the size range, improving overall fit and reducing weight without compromising protection. Lightweight yet robust, the Just1 J39 Revo is ideal for daily riding and weekend trips.

Key Features:

• High strength thermoplastic resin shell
• ECE 22.06 Approved ensuring compliance with current safety standards
• 2 shell sizes and 3 EPS sizes for optimised fit
• J.1.E.R Emergency removal system for safer post-crash handling
• Removable and washable interior padding for easy maintenance
• 8 air inlets and 6 air outlets to provide efficient ventilation
• Double D locking system for secure fastening
• Shell 1 covers sizes XS / S / M
• Shell 2 covers sizes L / XL