Workers with upper extremity amputations or impairments can tighten shoestrings with a dial lacing system. The BOA-Fit Lacing System (available on various makes/models of footwear, including work boots) utilizes a knob that tightens and loosens the laces to reportedly produce a precision fit, improve foothold, and eliminate pressure points. The system's components include: adjustable micro-dial, nylon-coated stainless-steel wire laces, and low-friction lace guides. To operate, the dial is pushed down to engage the system, turned the left to tighten the laces (until most comfortable fit achieved), turned the right to loosen the laces, then pulled up to disengage the system. The knob is designed to repel sand, oils, mud, and dirt-crusted materials, and one need not take off his/her gloves to tighten/loosen the laces. (See website for footwear brands in which the system has been installed.)