Stilo Male Quick Coupling - ST5/ST4 R03J003XXXL Made with new lightweight materials

Made with new lightweight materials for your comfort and safety

Ratchet on Right side

low pressure exhaust vents aids in air extraction

Replaceable padding is easy to clean and/or replace for continued comfort

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

Stilo Male Quick Coupling - ST5/ST4 R03J003XXXL Made with new lightweight materialsHydration 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