A suture anchor for deployment in a preformed bone hole to secure soft tissue to bone. The anchor includes a proximal part, a distal part, an inner tube part and a ring part. The ring part is configured to move independently relative to the proximal part, inner tube part and distal part and further comprises two pairs of opposing apertures defining two suture passageways between an outer surface of the inner tube part and inner surface of the ring part. Before or after being connected to soft tissue, a suture is directed through the two suture passageways. Tension on the tissue can be adjusted by maneuvering the suture in the ring part without interfering with advancement of the distal part into the bone. The anchor has a center bore extending longitudinally between a distal end and proximal end of the anchor and is configured to receive an insertion guide.
