A swim diaper for use by a child while swimming, bathing or otherwise exposed to an aqueous environment includes a main torso section formed from a sheet of breathable, waterproof material which has been treated with an antimicrobial solution so as to prevent the spread of recreational water illnesses. The material is of sufficient thickness to retain solid waste and having a moisture vapor transmission rate of at least 200 g/m2/day. The main torso section has a torso receiving aperture at the upper end of the main torso section for receiving a torso and leg receiving apertures located in the lower portion of the main torso section for receiving a childs legs.
