San Francisco's Cow Hollow neighborhood is a lovely area for strolling, shopping and dining.Follow Antonio Barrios chief concierge at the St. Regis San Francisco, to two of his favorite places along the main Union Street corridor: an elegant brasserie, Cafe des Amis, and San Francisco's finest custom leather shop, Fog City Leather.Featured in this video: Cafe des Amis; French-style brasserie; Union Street; Cow Hollow; Fog City Leather; leather jackets; custom leather; bespoke leather; made-to-measure leather; alligator skin. Less