Away shirt worn when the side won the Primera B Metropolitana's Apertura phase, but fell back to 7th place in the Clausura before the season was halted due to the COVID-19 pandemic. The Greater Buenos Aires-based outfit are named after William 'Guillermo' Brown, the Irish-born naval officer who is held up as a national hero in Argentina as the "Father of the Argentine Navy"

This chart is intended as a guide so minor deviations can be expected. Length is measured from the top of the shoulder to the hem; width is measured between armpits, or across the waist for pants/shorts laid flat. Measurements are in cm