Patent ID: 8701253

Claim:
A slide fastener comprising a pair of fastener tapes and a plurality of coupling elements which are attached to plural positions along opposing side edge portions of the fastener tapes, wherein each of the coupling elements includes: a coupling head, which engages with opposing coupling elements, a first leg portion and a second leg portion which are continuously disposed on both end portions of the coupling head and extend towards respective adjacent coupling heads, the first leg portion is disposed away from a surface of the fastener tape, and the second leg portion is disposed in contact with the surface of the fastener tape, the first leg portion and the second leg portion sewn to one of the fastener tapes via a sewn portion, the sewn portion is disposed on an outer surface of the first leg portion between the coupling head and an end of the first leg portion, the first leg portion includes a vulnerable portion whose breaking resistance is weakened on the outer surface between the sewn portion and the coupling head, and the vulnerable portion includes a cut-out portion which is cut out of the outer surface of the first leg portion.