D3 CORE FEATURES:
- Lightweight Fiberglass shell construction
- 20 high-flow intake and exhaust ports for maximum ventilation
- Added eps and new headform shape for improved impact performance
- Full incremental sizing for greater range of fitment
- Purpose-built internal cavities for audio integration
- Includes TLD drawstring helmet sock
- Exceeds bicycle certifications: ASTM F1952-DH, ASTM F2032-BMX
- 1225 grams
- Not intended for use with motorized vehicles