A strap member includes a first primary strap including a first notch formed along its inner edge and a second primary strap includes a second notch formed along its inner edge, the first notch and second notch defining a recess in the strap member. An intersection point positioned within the recess is at an intersection of lines being one of collinear and tangential with portions of the inner edges of the first and second primary straps. An elastic member extends between the first primary strap and the second primary strap.