Literally whatever fits. For me that's my trail shoes / hikers that I wear every day, and for most day hikes. Though I switch to comfortable Rockport Dressport dress shoes when I travel, and I walk in those often enough I daresay I could walk from work to home (7 miles) with reasonable comfort. They've taken me on multi-mile ambulations around London, Oslo, Copenhagen, Amsterdam and alot of US cities too.