A classic pinafore for work and play. With a buttoned side fastening, side and back pockets. Make it long with a back split or short just below the knee. Accentuate the detailing with contrast top stitching or keep it simple with matching thread.
8-12oz denim, cotton twill or canvas, corduroy, moleskin, half panama cotton. For a softer look and feel you could try a mid weight linen or tencel/linen blend.
Images via Merchant & Mills.