A telemetrically enhanced article of clothing comprises a fabric layer having an inside surface and an outside surface. A sensor is attached to the inside surface of the fabric layer such that when the article of clothing is worn by the user, the sensor is in contact with the user's skin. An electrically conductive trace may extend along the fabric layer and may be electrically connected at a first end to the sensor. A retaining ring may be adhered to the fabric layer near a second end of the electrically conductive trace. The retaining ring is capable of receiving a telemetry device and forming a compression connection between the perimeter of the telemetry device and the retaining ring such that when the telemetry device is received in the retaining ring, the second end of the electrically conductive trace is in electrical contact with the telemetry device. The telemetry device may store, process, or transmit physiological and/or other data collected by a sensor.