A fibrous structure includes a plurality of discrete wet-formed knuckles extending from a pillow surface of the fibrous structure, wherein the plurality of discrete wet-formed knuckles are arranged in a pattern organized in an X-Y coordinate plane, each of the wet-formed knuckles of the pattern is included within a plurality of rows oriented in an X-direction and a plurality of rows oriented in a Y-direction, and each row in the X-direction is curved in a repeating wave pattern, wherein the repeating wave pattern has an amplitude and a wavelength, and wherein the amplitude is between about 0.75 mm and about 3.0 mm, and the wavelength is between about 25.0 mm and about 125.0 mm.