Abstract: A footwear assembly has releasably attachable sock and oversock arranged to cover the user's toes and heels. A user puts the sock on a first foot, puts the sock-covered toes into a water-resistant oversock's toe cap, stretches the oversock sole along its length by pressing a second foot down on a protrusion extending outward from the heel of the oversock sole, and releases the stretched sole to bring the oversock heel toward the sock-covered heel. An attachment fastener has a single sock attachment site, located on the rear of the sock at a heel rear portion, and a single oversock attachment site, located on a rear section of the oversock. The sock releasably attaches to the oversock at only the single sock attachment site; and the oversock releasably attaches to the sock at only the single oversock attachment site.