Originally Posted by nwff

The regulations are a bit more nuanced than that. It's the ski boot bag that is not supposed to contain additional items. The ski bag is fine to contain additional items, as long as it's under 50 lbs.

I travel with a hard-sided Sportube double ski case and have never been questioned. (Boots go in a large rolling duffel.) I've not tested the 50 vs. 70 lb allowance as a 1K on the ski tube.

• Ski and boot bags weighing more than 50 pounds (23kg) that contain other items in addition to or in place of appropriate ski equipment will be subject to the applicable overweight checked baggage service charge....