Abstract: The present invention relates to a suture tightening wound closure device for use on mammals including humans. This device is comprising a smooth suture (to be sewn across an open wound through the skin and underlying tissue) and a suture loop tension means (for closing the wound). This tension means is by grasping one end of the suture, and pulling back its second end, forming a tensioned suture loop, enclosing the wound. Specifically, the device of the present invention is characterized by the tension means having a manual control mechanism (for pulling or releasing said second end). The smooth suture according to the preferred embodiment of the present invention is a suture band, which is flexible for bending along it's length and is resistant to bending along it's width. The device of the present invention also relates to embodiments having in addition a pair of suture supporting skin reinforcing means.