Polaris Snowmobile New OEM Pro-Ride RMK Canvas Cover 2878724 Fits Model Year 2011-2013 PRO-RIDE RMK and 2011-2013 Switchback Assault 144" These durable Canvas Covers provide outstanding protection for your favorite sled when it's being towed, parked overnight or stored in the off-season. These heavyweight Canvas Covers have an opening that provides access to the fuel cap, and they fit securely to the sled for reliable protection during trailering. Material: Heavy 10-ounce cotton canvas, treated to repel water and prevent UV degradation Feature Polaris branding.