The Monet Pro Sausalito canvas is a 11.5 ounce cotton canvas, sized and double-primed with archival quality acrylic gesso giving a final primed weight of 14 ounces per square yard. This canvas is a great heavy weight for impasto and aggressive painting techniques; strong and tough with a robust paint-gripping surface texture. Edges are 1.5 inches deep and staple-free so you can easily remove the canvas and re-stretch it on the same size frame. The MuseumWrap stretching system offers the tightest stretch possible, with tongue-and-groove corners and no finger joints. Made with solid pine or fir stretcher bars.