Shuai Jiao pants Official reversible Shuai Jiao pants with elastic waistband and additional lacing at the waist, cotton canvas, durable fabric. In terms of thickness, these pants are comparable to karate pants, they also have an equally spacious crotch for maximum freedom of movement. Polyester/cotton blend for comfort and durability. With elastic at the waist and ankles. The pants can be worn inside out; depending on which color you want to be visible: blue or red.