Exploring effective lubricant fillers to improve the tribological performance of the fabric composites would have practical applications. Herein, we developed nano- and micro-dimensional WS2 as fillers to improve the tribological property of the hybrid PTFE/Nomex fabric/phenolic composite. Sliding wear tests showed that the WS2-filled fabric composites displayed improved antiwear behavior under all the test conditions, compared to the unfilled one. The optimum content of WS2 to fill the fabric composites was 2 wt% for nano-dimensional WS2 and 4 wt% for micro-dimensional WS2. We also investigated the unfilled, nano-dimensional WS2-filled, and micro-dimensional WS2-filled fabric composites under varied test conditions, and the corresponding wear mechanisms were discussed based on the characterizations.