This ladies' white ascot/faux collar is designed to wear under a top that is uncollared but could use a collar.  It is by Bechamel, 65% polyester and 35% cotton knit ,  Machine wash.  It features a ribbed knit collar and a short button placket.  The size is "ALL" (one size fits all).  This pre-owned garment is in very good condition.  Thanks for looking!