Engineered, designed, and validated by mountain bikers, including a close collaboration with 3x World Champion Downhill racer Greg Minnaar, Oakley DRT5 will give you the confidence to rip down technical descents. Eyewear Dock: Integrated eyewear dock to securely stow your shades and keep them handy for quick and easy access BOA 360 Fit System: With its soft textile feel and flexibility, the TX1 Lace lies flat against your head, allowing for seamless eyewear compatibility X Static Brow Padding: X-Static harnesses the power of silver to create a powerful technology that inhibits the growth of bacteria on fabric, eliminating odor for the life of the product. Also ships with a secondary set of pads. MIPS Integration: The MIPS Brain Protection System is a helmet integrated; low friction layer designed to reduce rotational motion transferred to the brain during an impact Helmet Travel Bag and Oakley Decal Included Small (52-56cm) / Medium (54-58cm) / Large (56-60cm) CPSC 1203, EN1078 and ANZ2063 Certifications