Stilo Male Quick Coupling - ST5/ST4 R03J003XXXL or 53cm to cover the

or 53cm to cover the most popular size range for kids

Ratchet on Right side

1 in Webbing

Available in Small

2A/5 Homologation

Stilo Male Quick Coupling - ST5/ST4 R03J003XXXL or 53cm to cover theHydration accessories for ST5 & ST4 Stilo helmets. Product Description: Hydration Coupling Stilo Hydration System Male ST5 ST4 Sold Individually At Stilo Helmets, our mission is clear: to empower every racing enthusiast, from grassroots to professional, with the pinnacle of safety and performance technology. We believe in uniting all competitions under one helmet, engineered to perfection through relentless innovation, unwavering reliability, and a