The purpose of this article is to evaluate the preference of transtibial amputees for the Silicone Suction Socket (3S) versus the supracondylar PTB prosthesis with pelite liner and to explore the reasons for their preferences.Eight patients with residual-limb problems were asked to wear each type of prosthesis for a minimum of 10 weeks (except if no definitive 3S was made due to problems with the trial socket) and subsequently were asked to complete questionnaires to discuss comfort, ambulation and activities of daily life, working conditions, and sports activities with the prostheses. Two patients did not receive a definitive 3S because they could not walk comfortably on the trial socketTwo of the six amputees who used both socket designs preferred the 3S, two preferred the supracondylar PTB with pelite liner, and two were satisfied with both prostheses.