DeWitt’s 1.5 oz. N-Sulate is a medium weight, permeable, UV-treated fabric designed to protect flowering annuals, bedding plants and vegetables from the severe cold and freezing temperatures. This fabric installs easily and is reusable. N-Sulate can lengthen your harvest time and extend your flowering season. Covers 12'x10' area. Pairs well with our DeWitt Anchor Pins!