All of our waist trainers are custom cut and sew with materials designed, engineered and manufactured specifically for use on our waist trainers. This provides fit, feel and performance far beyond any other waist trainer you can buy on the market today. In fact, we consider most of the waist trainers you can buy elsewhere to be unfit for human use - they have a pungent odour from residual processing chemicals, they use uncertified materials and the components stick out into the body or are very uncomfortable. Ours are nothing like that.