Always fasteners should be fixed on to double material for strength. They should be fixed in such a way that the right side of the garment laps over the left side for women and the left laps over the right for men. Buttons and buttonholes are generally used for mens shirt, trousers etc., just as press buttons, hooks and eyes are used for ladies cholies and childrens dresses.
c. Elastic thread: This is very thin covered elastic core used for shirring. Since it is wound in bobbin for shirring it is called bobbin elastic. d. Special purpose elastic: These are available for pyamas, lungies and swim-wear.