sunglasses Restoration Hardware spandex Rumer Willis

Rumer Willis did some home shopping at Restoration Hardware in Beverly Hills on Tuesday.

The daughter of Demi Moore and Bruce Willis wore head-to-toe black ... Halloween was on Monday, Rumer!

Rumer left with no purchases, but was polite to the valet. Willis wore ballet flats, as usual -- she's "baffled" by high heels.