A saddle-type vehicle, comprising a vehicle body frame, an internal combustion engine supported on the vehicle body frame and an exhaust device for discharging exhaust gases from the internal combustion engine, said exhaust device comprising: an exhaust pipe connected to said internal combustion engine; and an exhaust muffler connected to a downstream side of said exhaust pipe, wherein: said exhaust muffler includes a first muffler section connected to a downstream end of said exhaust pipe and a second muffler section connected to a downstream side of said first muffler section, to cause exhaust gases delivered from said exhaust pipe to pass through said first muffler section to be discharged from said second muffler section out of said exhaust muffler; said first muffler section includes a tubular member made up of an inner pipe to which said exhaust pipe is connected and an outer pipe covering said inner pipe, and a connector connecting said tubular member and said second muffler section to each other; said first muffler section has a first expansion chamber defined therein between said inner pipe and said outer pipe; said inner pipe houses therein a valve for changing an amount of exhaust gases passing through said inner pipe; said first muffler section includes a curved portion curved vertically as viewed in side elevation of the vehicle; said exhaust muffler has a second expansion chamber defined in said second muffler section rearward and upward of said first muffler section, said second expansion chamber having a cross-sectional area larger than a cross-sectional area of said first expansion chamber; and said inner pipe and said outer pipe in said curved portion are disposed concentrically to each other. an exhaust pipe connected to said internal combustion engine; and an exhaust muffler connected to a downstream side of said exhaust pipe, wherein: said exhaust muffler includes a first muffler section connected to a downstream end of said exhaust pipe and a second muffler section connected to a downstream side of said first muffler section, to cause exhaust gases delivered from said exhaust pipe to pass through said first muffler section to be discharged from said second muffler section out of said exhaust muffler; said first muffler section includes a tubular member made up of an inner pipe to which said exhaust pipe is connected and an outer pipe covering said inner pipe, and a connector connecting said tubular member and said second muffler section to each other; said first muffler section has a first expansion chamber defined therein between said inner pipe and said outer pipe; said inner pipe houses therein a valve for changing an amount of exhaust gases passing through said inner pipe; said first muffler section includes a curved portion curved vertically as viewed in side elevation of the vehicle; said exhaust muffler has a second expansion chamber defined in said second muffler section rearward and upward of said first muffler section, said second expansion chamber having a cross-sectional area larger than a cross-sectional area of said first expansion chamber; and said inner pipe and said outer pipe in said curved portion are disposed concentrically to each other. said exhaust muffler includes a first muffler section connected to a downstream end of said exhaust pipe and a second muffler section connected to a downstream side of said first muffler section, to cause exhaust gases delivered from said exhaust pipe to pass through said first muffler section to be discharged from said second muffler section out of said exhaust muffler; said first muffler section includes a tubular member made up of an inner pipe to which said exhaust pipe is connected and an outer pipe covering said inner pipe, and a connector connecting said tubular member and said second muffler section to each other; said first muffler section has a first expansion chamber defined therein between said inner pipe and said outer pipe; said inner pipe houses therein a valve for changing an amount of exhaust gases passing through said inner pipe; said first muffler section includes a curved portion curved vertically as viewed in side elevation of the vehicle; said exhaust muffler has a second expansion chamber defined in said second muffler section rearward and upward of said first muffler section, said second expansion chamber having a cross-sectional area larger than a cross-sectional area of said first expansion chamber; and said inner pipe and said outer pipe in said curved portion are disposed concentrically to each other.