T-shirts are not just one of the most popular workwear items. They are also one of the most popular items of clothing in the entire world. Most people will have at least one t-shirt in their collection and that is down to the sheer ease of wearing this light and practical item. They are perfect as stand alone wear when the weather is warm and work well as part of layering too. As workwear, t-shirts are relaxed and comfortable, helping workers to keep cool when carrying out tough physical tasks during their time on site.