The present invention relates generally to an electrode assembly including a thin, low thickness snap for use, for example, in a heart rate monitoring. The electrode assembly can come in the form of a kit with multiple pieces or in an assembled form. The electrode assembly includes two electrodes with respective snaps connected by a non-stretchable material portion. The electrode assembly can be easily integrated into a garment with minimal interference in the usability of the garment itself. Additionally, the present invention relates to a garment having integrated therein an electrode assembly.