of proximal and distal ends 10 a 10 b may include a needle not shown as shown barbs 14 are formed projecting outward from elongate body 12 of suture 10 in a first direction however it is envisioned that barbs 14 may project outwardly in a first direction along a first portion of suture 10 and a second length of barbs 14 may project outwardly in a second direction along a second portion of suture 10 thereby forming a bi directional barbed suture with reference still to fig1 a and 1b barbs 14 form an angle u201c a u201d fig1 a of less than ninety degrees 90 u00b0 between barbs 14 and elongate body 12 each of barbs 14 includes a cavity or recess 15 which is at least partially disposed along elongate body 12 as shown each recess 15 is defined by a ridge 16 fig1 c ridges 16 are formed from a portion of elongate body 12 and have an increased thickness and or density ridges 16 are created as part of the barb forming process although shown including ridges 16 it is envisioned that elongate body 12 may define one or more recesses 15 formed without ridges 16 alternatively it is envisioned that elongate body 12 may define a recess formed with multiple ridges 16 16 a see fig1 c shown in phantom recesses 15 and or ridges 16 may be.