A closure system for braces, protective wear and similar articles is disclosed. The closure system includes a plurality of opposing lace guide members and a tightening mechanism. The closure system further includes a lace extending through the guide members and coupled to the tightening mechanism. In some embodiments, a quick release apparatus is included to facilitate opening of the closure system. The tightening mechanism in some embodiments includes a control for winding the lace into a housing to place tension on the lace thereby tightening the closure system.