Guilford of Maine FR701 Acoustic Fabric is an acoustically transparent fabric that can be used to wrap acoustical panels or to cover and conceal speakers.  Guilford of Maine's FR701 Acoustical Fabric Series is the industry-standard for acoustical panels, The breathable nature of the fabric allows sound to pass through uninterrupted.  This makes it Ideal for wrapping or covering sound absorbing panels and bass traps.  The FR701 Fabric line also has a large selection of over 60 colors.to choose from.