DKONI is a professional manufacturer of helmets: helmets for adults,bike helmet for Adult,Road biking for Men,Women Bicycle helmet,street bike helmet,mountain bike helmet,bicycle helmet with visor,road cycling helmet,Youth Mountain biking and Teenager sports helmets,cycling helmet mtb,freedom bike helmet,mtb youth helmet,mtn bike helmet,multisport bike helmet,mtb helmets,enduro helmet,enduro bike helmet,enduro helmet mtb,mtb helmet trail,mtb cycling helmets,mountain helmet,mountain trail helmet,mountain helmets men,mountain helmets adults,mountain helmet women,boys mountain biking helmet,girls mountain bike helmet,bicycle helmet bmx,bike bmx helmet,adult bike helmet trek,adult road bike helmet,cross country helmet, US & EU DUAL SAFETY CERTIFIED Providing more safety for biking, DKONI MTB bike helmet is made as a one-piece construction with an ultra-light PC outer shell and high quality EPS foam,super strong and durable. PC full-coverage mountain bike helmet provides a higher level of all-around protection for the head, including the back. Suitable for a wide range of sports types. Detachable big visor for different bicycle activities DKONI bike helmet with visor is suitable for mountain biking and it is suitable for road biking without the visor. The visor is designed to block sunlight,rain,mud and more importantly keep foliage and branches away from your eyes and face when riding in woodland etc. multiple well-designed vents keeps user cool and comfortable even in long-distance cycling. DKONI universal adults,youth,teenager MTB mountian bike helmet suitable for men,women,child,boy,girl,teens Helmet size: M:21.2-22.5inch(54-58cm) L:22-24inch(56-61cm) Perfect for enduro,mt,mtb,mtn,mbt,btn,biking,bicycling,mountain bike,cycling, biking,Bicycle,Road biking,Mountain biking,race,racing,city,cycling,road trek,freetown,freedom,freestyle,skateboarding,rollerblading,scootering.