A straddled vehicle comprising: an engine; a rear wheel arranged rearward of the engine; an exhaust pipe connected to the engine; and a silencer connected to the exhaust pipe, at least a portion of which is arranged rearward of the engine and forward of the rear wheel, wherein the silencer includes: a case at least a portion of which is arranged on a vehicle center line as the vehicle is seen from below; a partition wall that is arranged inside the case and partitions the inside of the case into a first chamber and a second chamber; a first pipe including a first inlet through which an exhaust gas from the exhaust pipe flows into the first pipe, a first peripheral wall that is arranged in the first chamber and has a plurality of through holes, and a first outlet that is opened into the second chamber; a second pipe including a second inlet that is opened into the second chamber, and a second peripheral wall that is arranged in the first chamber and has a plurality of through holes; a fiber-based silencing material that is arranged inside the first chamber and outside the first pipe and the second pipe; a third pipe including a third inlet that is arranged inside the second pipe, a third peripheral wall that is arranged inside the second pipe and inside the second chamber, and a third outlet that is opened toward an outside of the case; and a fourth pipe including a fourth inlet that is arranged inside the second pipe, a fourth peripheral wall that is arranged inside the second pipe and inside the second chamber, and a fourth outlet that is opened toward the outside of the case. an engine; a rear wheel arranged rearward of the engine; an exhaust pipe connected to the engine; and a silencer connected to the exhaust pipe, at least a portion of which is arranged rearward of the engine and forward of the rear wheel, wherein the silencer includes: a case at least a portion of which is arranged on a vehicle center line as the vehicle is seen from below; a partition wall that is arranged inside the case and partitions the inside of the case into a first chamber and a second chamber; a first pipe including a first inlet through which an exhaust gas from the exhaust pipe flows into the first pipe, a first peripheral wall that is arranged in the first chamber and has a plurality of through holes, and a first outlet that is opened into the second chamber; a second pipe including a second inlet that is opened into the second chamber, and a second peripheral wall that is arranged in the first chamber and has a plurality of through holes; a fiber-based silencing material that is arranged inside the first chamber and outside the first pipe and the second pipe; a third pipe including a third inlet that is arranged inside the second pipe, a third peripheral wall that is arranged inside the second pipe and inside the second chamber, and a third outlet that is opened toward an outside of the case; and a fourth pipe including a fourth inlet that is arranged inside the second pipe, a fourth peripheral wall that is arranged inside the second pipe and inside the second chamber, and a fourth outlet that is opened toward the outside of the case. a case at least a portion of which is arranged on a vehicle center line as the vehicle is seen from below; a partition wall that is arranged inside the case and partitions the inside of the case into a first chamber and a second chamber; a first pipe including a first inlet through which an exhaust gas from the exhaust pipe flows into the first pipe, a first peripheral wall that is arranged in the first chamber and has a plurality of through holes, and a first outlet that is opened into the second chamber; a second pipe including a second inlet that is opened into the second chamber, and a second peripheral wall that is arranged in the first chamber and has a plurality of through holes; a fiber-based silencing material that is arranged inside the first chamber and outside the first pipe and the second pipe; a third pipe including a third inlet that is arranged inside the second pipe, a third peripheral wall that is arranged inside the second pipe and inside the second chamber, and a third outlet that is opened toward an outside of the case; and a fourth pipe including a fourth inlet that is arranged inside the second pipe, a fourth peripheral wall that is arranged inside the second pipe and inside the second chamber, and a fourth outlet that is opened toward the outside of the case.