Union jack flag is available to buy online at The Flag Shop. These great hard wearing Union Jack flags are made from 210 denier, (148/m2), nylon fabric, measure five feet by three feet, 152cm x 91cm, and have two brass eyelets / grommets for hanging from a flag pole. This Union flag is dye printed making it colourfast, double stitched all around, with four rows of stitching on the fly. These are great value Union flags are ideal for outdoor use.