Abstract: A wristband assembly comprising a strip of material having two ends, a closure hole adjacent one end, and a nephroid-shaped hole spaced from the closure hole, and a snap closure including a securing portion positioned through both the closure hole and the nephroid-shaped hole to hold the strip of material in a loop. In one embodiment, there are a plurality of nephroid-shaped holes, and each nephroid-shaped holed defines a major axis that is substantially perpendicular to a longitudinal axis of the strip of material. Preferably, the nephroid-shaped hole comprises a first lobe adjacent a first side edge of the strip of material and a second lobe adjacent a second side edge of the strip of material. In this embodiment, the snap closure further includes a hinge adjacent the first side edge, and the securing portion is positioned in the first lobe of the nephroid-shaped hole.