EXCLUSIVE AT NET-A-PORTER. Jenny Packham's 'Cosmo' gown may be simple, but it has just enough sparkle to make you feel truly special on your wedding day. Beautifully tailored from ivory cady in a column silhouette, it has tulle inserts at the bodice and sleeves that are embellished with light-catching crystals and bugle beads. The split at the back means you'll be able to walk down the aisle easily in heels - and show them off, too.