What to Pack For a Trip to Yellowstone, According to a "Yellowstone" Fan

Ski-Doo Women's Insulated Absolute 0 Highpants ($470)

Next up on the things to pack for Yellowstone: warm ski pants. I wore these Ski-Doo highpants, which were insulated and lined with polar fleece. The problem with most ski pants is that, while they keep you warm, they feel insanely uncomfortable or hard to get off. Fortunately, this wasn't the case for this Ski-Doo option. When I had to use the restroom, it wasn't a big deal or hassle removing the pants. (The layers though? Another story.)