BOTTOM CLOSURE MENDING MATERIAL Flex-Mend - (28" x 50') Flex-Mend is a woven polyethylene fabric, solid- coated with a specially formulated, very aggressive adhesive. An easily removed paper release is laminated to the fabric. With ordinary scissors, any size or shape patch or strip can be cut to fit the damaged area. All size rolls are shipped in a poly sleeve, and 100' rolls are individually boxed. Application instructions are packed with each roll.