Student Karate Suit. 7oz Black. POLYCOTTON. Complete with Belt. Trousers with Elastic and Cord Waist for all sizes. Excellent Karate Uniform made with finest Bleached Cotton. Karate Black Suits are Medium Weight 8oz 100% Cotton and of top quality and designed for comfort fit to give you a greater range of movement. There is no other match to Playwell Uniforms.