Embodiments described herein relate generally to simulating apparel items. A matching computer system may receive a request for an apparel item. The matching computer system may identify a 3D pattern corresponding to the apparel item. The matching computer system may provide this 3D pattern to a user agent computer system. The user agent computer system may cause a 3D printer to print a 3D artifact or modify an existing 3D artifact to simulate the requested apparel item. The modification of 3D artifact may be based on the data collected by the sensor(s) attached to the user which indicate the fitting and/or user feelings of the 3D apparel. The user agent computer system may print or modify the 3D artifact to include components that simulate characteristics of the requested apparel item. The 3D artifact may provide feedback to the user agent computer system based on sensing measurements. Other embodiments may be described and/or claimed.