Size Guide

Just1 J39 Solid Matt Black

The Just1 J39 Solid Matt Black is a versatile and dependable open-face helmet designed for riders who prioritise comfort, safety and understated style. The matt black finish gives a sleek, contemporary look suitable for urban commuting and leisure riding alike. With an emphasis on user-friendly features, the J39 combines a robust thermoplastic resin shell with modern safety equipment to provide solid protection while remaining lightweight and comfortable for extended use. The helmet’s ventilation and removable, washable lining make it a practical choice for everyday riding in varied conditions.

Key Features:

• High strength thermoplastic resin shell for reliable impact protection
• ECE22.06 approved safety standard
• Available in 2 shell sizes and 3 EPS sizes to ensure a close, secure fit
• J.1.E.R emergency removal system for safer helmet removal after an accident
• Removable and washable interior padding for easy maintenance and hygiene
• 8 air inlets and 6 air outlets for effective ventilation and rider comfort
• Double D locking system for a secure and adjustable fastening
• Shell 1 covers sizes S and M; Shell 2 covers sizes L and XL

The Just1 J39 Solid Matt Black delivers functional performance with a minimal aesthetic. Its ventilation system helps keep riders cool on longer journeys, while the washable interior ensures the helmet remains fresh. Combined with the emergency removal system and ECE22.06 approval, this helmet is well suited to those seeking dependable protection and straightforward design in a matt black colourway.