Notch Men's Silk Self-tie Bow Tie - BOB - Navy blue base with white dots 100% Silk Navy blue base with white dots For necksizes between 13 3/8" and 18" which means it fits most adults Self-tie bow tie with adjustable strap. Delivered untied in pretty and protective box. 2 3/8" high and 4 3/8" wide Pocket square and Necktie in matching design are available. Search for Notch BOB.