Van Buck Union Jack Flag Designer Novelty Self Tie Bow Tie. A vibrant union jack flag bow tie. A fantastic quality self tie bow tie in red, white & blue for the patriotic British gentleman. Luxury self tie bow tie with easily adjustable neckband & instructions on how to tie the bow tie. Fits neck: 14.5" to 22" - 37cm to 56cm. Presented in a gift box. Material: 100% Cotton. Made in England. Designer: Van Buck. This bow tie is an original unique item and may differ slightly from the image shown.