Karben Sienna Riding Hat Black. Be safe in style with the Sienna Riding Hat. Safety is important for every ride so you can have peace of mind when riding in the Sienna Hat as it is tested to BSI standards and certified to PAS15:2011 with a flexible peak and bespoke micro-adjusted dial fit the hat feels lightweight and secure for optimum protection. The chrome accents frame a central vented panel with a tough carbon finish giving you ventilation when riding to keep you comfortable but still looking smart. The Hat features a low profile form, smooth, lightweight outer shell, neat and flattering flexible peak, bespoke fit micro-adjustable dial system, maximum cooling effect front and rear air vents, a thermoregulating 3D mesh liner, CoolDryTM headband, expanded polystyrene inner shell with ventilation holes, fully adjustable 4-point harness with leather look side panels, quick release harness buckle and a removable anti-rub chin guard. This hat has got everything you need to be safe, comfortable and stylish when riding!