Abstract: A suture anchor is described. The suture anchor includes an elongate anchor body having a proximal end and a distal end, at least one suture secured within the anchor body, at least one major thread, and at least two microthreads occupying the space between each major thread. An anchor driver is also described. The anchor driver is capable of accepting various attachments such that an operator can change the functionality of the driver based on the type of attachment in use, such as a needle attachment. A method of attaching soft tissue to bone in a subject is also described. The method includes the steps of securing a suture anchor into bone with the anchor driver, joining a needle attachment with the anchor driver, passing at least one suture through soft tissue using the needle attachment, and tying the at least one suture against the soft tissue to secure the soft tissue to the bone.