16" to 17" is the standard, but IMO Jeans look way better and slimmer with a 15" or so leg opening, especially with sneakers. Levi's has a nice 15" opening going on with their 513's. The new SuperSkinny Guy by N&F also has a 14-15" opening. What are some other brands that have smaller leg openings? Especially ones that aren't made for very thin people. edit: Could a mod move this into the denim questions thread? I missed it.