Fastener stringer for invisible slide fastener

Provided is a fastener stringer (11A, 11B) for an invisible slide fastener, the fastener stringer (11A, 11B) comprising: a pair of fastener tapes (20A, 20B); and a pair of fastener element rows (30A, 30B) each having a coil-shaped monofilament row (29A, 29B) and a core wire (15). Each element (31) of the fastener element row includes an engaging head portion (32), an upper leg portion (33), a lower leg portion (34), and a connecting portion (35), and a bent portion (38) is formed on the lower leg portion of each element, so that a lower surface (37) of the lower leg portion is formed such that a first lower surface (37a) closer to the connecting portion than the bent portion is closer to the upper leg portion than a second lower surface (37b) closer to the engaging head portion than the bent portion. 本发明提供一种隐形拉链用拉链牙链带(11A、11B)，其包括：一对拉链带(20A、20B)；以及一对拉链链牙列(30A、30B)，其分别具有线圈状的单丝列(29A、29B)和芯线(15)。拉链链牙列的各链牙(31)包括啮合头部(32)、上脚部(33)、下脚部(34)和连结部(35)，各链牙通过在下脚部形成弯折部(38)，使下脚部的下表面(37)形成为与弯折部相比更靠连结部侧的第1下表面(37a)比与弯折部相比更靠啮合头部