TIG welded tubular aluminum frame. Easy installation, no modifications necessary.Custom made Gripper Top Seat Wrap. All hardware included for complete installation. The item "Skinz Air-Frame Free Ride Snowmobile Seat Kit For 2013-2018 Ski-Doo XM/XS" is in sale since Saturday, March 10, 2018. This item is in the category "eBay Motors\Parts & Accessories\Snowmobile Parts\Seats". The seller is "rpm-powersports" and is located in Omaha, Nebraska. This item can be shipped worldwide.