5 Oz. - Ultra Lightweight.Elastic Drawstring Waist.55% Cotton, 45 % Polyester.White belt included. Our newest and lightest weight uniform. Ideal for students. 55% cotton/45% polyester blend. Reinforced stitching at seams provides strength for even the most strenuous workout.Set includes jacket, pants and white belt. Pants feature an elastic drawstring waist. Machine washable. Also available in black.