AIGO Impex Your workout clothes can also help protect you from the environment. If you’re planning to exercise outside in the summer when it’s hot, loose clothing and breathable fabrics are incredibly important. It’s going to help keep your body cool so you don’t get overheated.There are some karate styles that use red, blue and black gis. Inferior karategi are often cut from a light fabric similar to that of a summer shirt. These karategi are easily ripped, and tend to adhere to the practitioner’s skin, creating some discomfort after any extensive perspiration is experienced.Drying your uniform – Your uniform must dry on the line or clothes rack. Sunlight helps remove stains and will keep the uniform white. That means that if you train every day, you will wash and dry a uniform every day. In humid environments, your karate uniform may require two days to line dry.