Hi shivani, cotton as a fabric is breathable and soft and comfortable on the skin. Your skin breathes if you must know and when there is perspiration the sweat on your skin. We wear cotton clothes in summer because it makes us cool in the summers. We should wear light colored clothes in summer because light coloured clothes keeps us cool as they insulate. There are a number of reasons to prefer cotton clothing in the summer as compared to synthetic fabrics. The most important among them is the ability of cotton to absorb moisture. We should wear cotton garments in summer in light of the fact that during summers we generally sweat so much and cotton fabric ingests this perspiration and causes the body to. Cotton is almost made up of cellulose only. We know that the temperature of the atmosphere is higher in summer. So, to adjust the body temperature, the body itself allows.