The answer to this question depends on a number of factors, including the weight of the fabric, how much you will wash it, and personal preferences. Generally speaking, lighter clothes are best for summer because they’re more breathable than heavier fabrics. Cotton is considered to be one of the most comfortable and breathable fabrics in summer. Cotton t shirts are super comfy, and you can wear them anytime. They have a unique ability to absorb sweat which makes them perfect for summer months.