A pair of swimming goggles includes a main frame body with two slots respectively defined in two sides thereof, two elastic straps, and two buckles. Each elastic strap includes a first end, a second end, and a mediate section, each elastic strap being wound through the associated slot. The first end of one of the straps has one of the buckles attached thereto, while the second end of the other strap has the other buckle attached thereto, thereby allowing adjustment of the lengths of the straps i...