Bontrager QUANTUM 頭盔-綠黑色-細碼 / Bontrager QUANTUM HELMET-GN/BK-SM

In-mold composite skeleton increases helmet integrity and larger vent variations
Fully-adjustable Micro-Manager fit system fits a wide range of head sizes
Soft, comfortable, moisture-wicking, and washable helmet pads
LockDown dividers make helmet strap management clean looking and easy to adjust
Internal, recessed channels manage airflow through the helmet and over the head
Removable snap-on visor with visor port plugs
Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownership