iecool Spherical Dual Lenses Anti-Fog Professional Ski Goggles Anti-fog. Dual-lenses, an inner and an outer with a vacuum gat, not removable separately. Anti-UV. Mirrored lenses, color changed by angle. Fit prescription glasses, better for small glasses. Fit over helmet. Easily disassemble and assemble to change different lenses. Adjustable strap. Come with a hard case and a soft cloth bag.