I bought these to wear to the indoor climbing gym, the place responsible for most of my physical activity. I've always worn standard track pants but thought I'd give these a try. They're awesome! They're super comfortable; although, grommets, clips, and zippers remove them from pajama-pant running. They fit like a glove (the adjustable waist-band/belt is a great design).

These are great for lounging too. Not as "I don't care" as sweatpants, but more relaxed than jeans. If you don't have something in this category of clothing, this is an awesome place to start! I think I might order another color.