US Patent 7389548 Swimming goggles

Swimming goggles have a lens frame, lens received in the lens frame, and a strap adjusting means for adjusting a head strap. The lens frame includes a soft first frame enveloping a hard second frame. The second frame forms enhanced structure on a center of an upper portion thereof. The strap adjusting means includes buckles respectively assembled on both sides of the lens frame, and a head strap is wrapped through the buckles. The buckles have bases integrally formed with the second frame. When the swimming goggles are in use, a center of the upper portion of the second frame will not be bent or distorted, while both sides thereof are gradually distorted to fit to swimmer's foreheads, effectively guarding from water seepage.