?Durable Impact Resistant for Safety Protection?Bike helmet CPSC&CE Certified is made of high-density, durable and tough imported PC outer shell+EPS inner foam. Superior In-molding technology joins these impact-resistant material to ensure better shock absorption in all direction, helping to decrease the impact forces of the collision, and giving you the best protection when road cycling or mountain biking. ?USB Charging Light&Reflective Straps?Mountain bike helmet with plug-in USB rechargeable and waterproof light, 3 safety red lighting modes-Steady, Fast Flashing and Slow Flashing, warning cars and other riders to recognize your direction and keep safe distance. Soft button is easy to press to turn on/off the light and change mode you want. Unlike ordinary helmet, Shinmax bike helmet is with reflective adjustable straps, Safer and Brighter in Night Cycling. USB charging cable is also included. ?Detachable Magnetic Goggles?Bicycle helmet with detachable magnetic goggles visor shield can be used as a sunglasses to provides eye protection, not only protect your face away from dust/wind/sand perfectly, but also block the strong ultraviolet light, UV400 protection. The goggles with 3 strong magnets can be flipped up or down and remove with one hand easily, which meets your 3 wearing needs-goggles up, goggles down and no goggles. (Your own glasses also can be worn under goggles) ?Upgraded 3-Ways Regulator?Adult bike helmet with upgraded three-way regulator, up and down adjustment function, 360° adjusting knob and adjustable side straps make our cycling helmet fit different head size perfectly 23.62’’-25.19’’ (60-64cm), suitable for both men and women, and enable you to wear the helmet more firmly and comfortably.(A Backpack is including to store bike helmet bringing you a more convenient riding experience) ?Super Comfortable and Cool?The adoption of specialized aerodynamic design with 12 vents, road bike helmet effectively reduce air resistance and reduce sweating, helping to increase the speed and keep staying cool. Detachable, washable and soft inner pad uses breathable material to keep clean and fresh during riding. Adult wear bike helmet will feel safer and more comfortable. Ultralight weighing only 330g/0.72lb, less pressure on the neck and head, you don’t even feel it on your head.