Gas cylinders are basically pressure vessels which are used to store various gases under desired pressure conditions. According to point of application, gas cylinders vary in shape, size and weight. In automotive industry, gas cylinders are used to store natural gas (CNG) and hydrogen for their use as fuel. Earlier, one of the largest challenge with automotive gas cylinders was their heavy weight and safety issues in case of accident. Innovation & emergence of new technology, over the past years, has led to the development of new composite material e.g. carbon fiber, glass fiber, etc., which have worked in the direction to overcome these challenges. Based on type of construction materials used, different type of automotive gas cylinders are available in the market. With high growth in use of automobiles running on alternative fuels such as hydrogen, compressed natural gas, etc., global automotive gas cylinders market is expected to increase at a significant CAGR over the forecast period 2016-2026.