An electronic device is provided. The electronic device includes a first housing, a second housing, a hinge housing disposed between the first housing and the second housing, and a flexible display at least partially disposed on the first housing and the second housing. The first housing and the second housing perform a folding or unfolding operation based on the hinge housing, and include at least one fiber structure disposed on at least a portion of a side of the first housing, the portion of the side being adjacent to the hinge housing within a predetermined distance.