Student Karate Suit. Medium Weight.7oz Black. 100% Cotton. Complete with Belt. Trousers with Elastic and Cord Waist for all sizes. Excellent Karate Uniform made with finest Bleached Cotton. Karate Black Suits are Light Weight 7oz 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.