Protect your investment and keep album jackets in pristine condition with these archival-quality Mobile Fidelity Sound Lab record outer sleeves. Widely hailed as the best product of its kind, Mobile Fidelity Sound Lab’s Archival Record Sleeves are “clearly” superior. These sturdy, 4-mil thick outer sleeves are made from polypropylene, which makes them more transparent than polyethylene sleeves. Besides providing rock-solid protection from dust, hair, and other debris, these sleeves allow you to enjoy eye-popping album graphics with more clarity. The 4-mil thickness affords stellar archival safekeeping, providing protection against scuffs, wear, denting, dirt, and the moisture that can travel on fingertips. Consistently using these sleeves throughout your collection ensures easy access to LPs on shelves or racks. The sleeves are sized just large enough to provide a close fit while allowing enough room to accommodate gatefold jackets. These sleeves are an absolute necessity for anyone who cares about their vinyl collection. Each pack contains 50 outer sleeves.