From a whimsical cake clutch to Charli XCX-approved jeans and velvet loafers, these are the best luxury buys this December.

Welcome to Robb Recommends, a regular series in which our editors and contributors endorse something they’ve tried and loved—and think will change your life for the better.

Debuting earlier this year, the Bottega Veneta Liberta bag put the House’s smooth leather on the map. Known for decades for ...