A receptacle connector for a wearable article, the receptacle connector comprising: a housing having a receptacle configured to receive a complementary plug connector therein, the housing being configured to be mounted to the wearable article; and a printed circuit board held by the housing, the printed circuit board comprising mating contacts for mating with the plug connector, the printed circuit board comprising mounting contacts that are configured to terminate conductors of a flat cable of the wearable article or an e-textile of the wearable article, wherein the receptacle connector includes a front mounting plate including a channel that defines the receptacle and extends a length along the housing from a first open end to a second end; characterised in that: (i) a top of the channel is open over a mating interface of the receptacle connector such that the mating interface and thus mating surfaces of the mating contacts are exposed through a top of the channel; (ii) the top of the channel is also open through the first end of the channel such that a continuous pathway is defined from the mating interface of the receptacle connector through the first end of the channel; and (iii) either (a) the channel includes side walls (82, 84) that are angled acutely relative to a bottom thereof to facilitate holding the plug connector or (b) the receptacle connector includes a latch mechanism configured to cooperate with a latch mechanism of the plug connector to latch the plug connector to the receptacle connector. a housing having a receptacle configured to receive a complementary plug connector therein, the housing being configured to be mounted to the wearable article; and a printed circuit board held by the housing, the printed circuit board comprising mating contacts for mating with the plug connector, the printed circuit board comprising mounting contacts that are configured to terminate conductors of a flat cable of the wearable article or an e-textile of the wearable article, wherein the receptacle connector includes a front mounting plate including a channel that defines the receptacle and extends a length along the housing from a first open end to a second end; characterised in that: (i) a top of the channel is open over a mating interface of the receptacle connector such that the mating interface and thus mating surfaces of the mating contacts are exposed through a top of the channel; (ii) the top of the channel is also open through the first end of the channel such that a continuous pathway is defined from the mating interface of the receptacle connector through the first end of the channel; and (iii) either (a) the channel includes side walls (82, 84) that are angled acutely relative to a bottom thereof to facilitate holding the plug connector or (b) the receptacle connector includes a latch mechanism configured to cooperate with a latch mechanism of the plug connector to latch the plug connector to the receptacle connector. (i) a top of the channel is open over a mating interface of the receptacle connector such that the mating interface and thus mating surfaces of the mating contacts are exposed through a top of the channel; (ii) the top of the channel is also open through the first end of the channel such that a continuous pathway is defined from the mating interface of the receptacle connector through the first end of the channel; and (iii) either (a) the channel includes side walls (82, 84) that are angled acutely relative to a bottom thereof to facilitate holding the plug connector or (b) the receptacle connector includes a latch mechanism configured to cooperate with a latch mechanism of the plug connector to latch the plug connector to the receptacle connector.