The fabric on this hakama is a unique; 70% polyester / 30% rayon blend. The material is stiff, straight and durable. The pleated folds will stay straight and give you a clean looking profile even during intense training and sparring. This hakama has been dyed using only natural methods and materials making it suitable for people with sensitive skin and cotton allergies. The unique blend of materials used in this hakama also mean that it is washing-machine safe in cold water and will stay at its original size when washed.