Destined to be a classic, the new 100% R. M. Williams cotton Collins shirt has back tucks for some extra room in the shoulders. Twin needling through the side seams, sleeve holes and cuffs means extra strength and durability. The regular-fit shirt is made from twill, small-check fabric and finished with R.M.Williams branded buttons and a Longhorn embroidered on the left chest pocket and has a button-down collar.