HJC i90 Davan Modular Helmet. Features Advanced Polycarbonate Composite Shell Lightweight, superior fit, and comfort using advanced CAD technology Upgraded center one-touch open/close locking system Powerful Air-Flow Ventilation System Seven intake vents and two exhaust vents at the rear spoiler allow optimal airflow SuperCool® Moisture-Wicking Interior Removable and washable crown and cheek pad liner system Glasses groove accommodates riders who wear eyeglasses HJ-31 Pinlock® Prepared Shield Vision Plus (+10mm) wide shield provides great visibility Rapidfire™ Shield Replacement System Ultra-quick, simple, and secure shield ratchet system HJ-V9 Sun Visor With Wider Vision One-touch integrated dark black smoke SunShield deploys and retracts quickly and easily Adjustable to three positions Double D-Ring Retention Strap Breath Deflector Included Standards: DOT & ECE (3XL-5XL DOT only) Construction: Advanced Polycarbonate Composite Shell Weight: 3.75 lbs / 1705 grams (approx,based on Size Medium Solid Color) Sizing Wrap a tape measure horizontally around your forehead. Select the helmet that is the closest fit to that size. A helmet should fit snug on your head. If it moves while wearing, it is too large. If it is painful to wear, it is too small. Size Chart Size CM: XS 53-54 S 55-56 M 57-58 L 59-60 XL 61-62 2XL 63-64 3XL 65-66 4XL 67-68 5XL 69-70
