From the manufacturer

The Enduro 3.0 helmet delivers downhill-certified protection in a highly adaptable 3-in-1 design. Wear it as a full face, a half shell, or an open-face helmet with the included ear covers—giving you the flexibility to match your setup to the day’s terrain. The lightweight polymer shell is paired with an in-molded PowerBridge and impact foam for high-speed impact absorption, and 360° Turbine Technology helps reduce rotational forces and absorb low-speed impacts. Certified to ASTM F1952–10 (downhill MTB) standards, the Enduro 3.0 offers serious coverage on technical descents, with the comfort and breathability you want for long trail rides. Whether you're racing enduro or riding big mountain lines, this helmet adapts to wherever the trail takes you.

Features

• SHELL: Lightweight polymer shell
• 3-IN-1 SAFETY SYSTEM: When combined with the impact foam, 360° Turbine Technology offers a unique 3-in-1 safety system by protecting against low-speed impacts, high-speed impacts, and rotational forces.
• IMPACT FOAM: PowerBridge in-molded force absorber
• TURBINES: 360° Turbine Technology
• Rotation protection: The optimally designed turbine discs enable the helmet to move slightly on the head upon impact, helping to reduce peak acceleration to the head & brain.
• Low impact protection: The special energy absorbing material in the turbines absorbs low impact energy associated with concussion.

Specifications

• VENTILATION: 20 vents effective even at low speeds
• LINER: Moisture wicking, breathable, anti-odor and washable inner liner
• FIT SYSTEM: Flat Lock Strap divider and fit system developed for custom fit, ease, and comfort
• CLOSURE: Fidlock magnetic closure system
• VISOR: Adjustable visor with breakaway function for rotational impact force reduction
• CHINBAR: Removable chin bar with easy push-button system
• OTHER FEATURES: Sunglasses dock port for easy, secure storage • Optimal neck brace compatibility • Soft touch and moisture wicking chin straps • Plastic-free packaging
• WEIGHT: With chin bar: from 690g (1.52 lbs) / Without chin bar: from 360g (0.79 lbs)
• CERTIFICATIONS: AS/NZS 2063:2008, EN1078, CPSC 1203, ASTM F1952–10
• CRASH REPLACEMENT: 3-year Leatt Helmet Replacement Program

SIZES:
S: 51–55 cm (20–21 5⁄8 in)
M: 55–59 cm (21 5⁄8–23 ¼ in)
L: 59–63 cm (23 ¼–24 ¾ in)