As you can see from the photo, the Enduro bag attaches nicely to your sled. 

Takes all of five minutes to install using the mounting hardware. Just remove the detachable waist belts, drill the holes and bolt it on using the included mounting hardware! If you ever need to remove it, just use the 4 mm allen socket attachment from the kit.

When we go for long rides, we carry wallet, cell phone and GPS in the specially designed padded pocket and remove the bag and use as a fanny pack when we're not using the machine. Works great!