Simplicity 3445; ©1951; Women's Bolero Suit with Detachable Button Trim and Cuffs: Bolero Style 1 features long set-in sleeves and a collar cut in one with the front. Cuffs and facing are of contrast fabric. Style 2 features a button-trimmed scalloped bolero and three-quarter sleeves. Detachable trim and cuffs are of contrast fabric. 17 pattern pieces.