The name CARHARTT saids it all. I believe these to be the finest work clothes money can buy for the working man. They last and last. You can wear long pants under these or short pants in the summer time. They come in inseams and waist sizes more intune with the size of american working people. They have zipper closures and are 100% cotton - 12 ounce cotton duck. They are heavyweight with double knees and are machine washable in cold water. You can't go wrong buying CARHARTT.