Existing helmets consist of the durable exterior which is of light-weight (polycarbonate, carbon fibre or composite fibre), its shielding is made up of polystyrene layers together with a comfortable padding of urethane. These helmets are used to protect the rider's head during crash but it becomes difficult to wear helmets in summer for longer durations due to a rise in temperature and poor ventilation mostly in Asian countries as it increases the stress level of the riders. Thus there is an urgent need for modifications in the design of the helmet which can provide improved thermal comfort with superior visibility, better aerodynamic shape in addition to reduce discomfort due to accumulation of carbon dioxide and to provide good relief against bad weather. 3D model of the existing and proposed helmet is designed on CAD software (solid works) and a comparison of the existing and proposed model with all features is performed on ANSYS software. In the present work, CFD simulation was also used which shows that in the proposed design there is improved flow of air inside the helmet which will increase the comfort level of the users against heat and humidity.
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