2010 XC/XR touring seat will fit a 2011 XC. It will also fit a 2011 XR if the XR has hard saddlebags; if the XR has leather saddlebags the wider seat (any seat except the OEM 2011 XR seat) will make it difficult to open the lids.
Corbin also builds seats for XC/XR; they may make a touring seat. Also there are numerous companies that modify OEM seats that could most likely make a normal seat into a touring seat that is much more comfortable than the optional one.
Retired USAF, IYAAYAS!
2008 V-Star 1100 Custom Bobber project
2011 Crimson XR with Forged Highway Bars / Hard Bags / Passenger Backrest, Ness parts including Smooth Layback Plate Frame/Mount / Rad 3 Mirror / deep cut grips / drivers floorboards /shifter peg / brake peg / passenger pegs. Witchdoctor black rack, Lloydz filter / timing wheel / VFC III, 7Jurock windshield, Drag Specialties seat.