Cross-section through the Kvadrat Acoustics Soft Cells Broadline panels. The framed wall mounted units are constructed from extruded recycled aluminium, a recycled polyethylene terephthalate (rPET), polyester, cover, and recycled glass wool absorbent. Using extrusions means the dimensions of the product can be tailored to the application. The fabric is held onto the frame by a mechanical locking feature.