Have we conjured up the perfect smock dress for when you're invited over to meet the âElloâ worm and his missus for a nice cuppa, or what? An ideal dress to transition into autumn with - this supersoft sweater style smock dress has red collar cuff contrasts, and an all-over print pattern of one of the few friendly voices that Sarah encounters in her quest to rescue her baby brother from Jareth in Jim Henson's fantasy film classic Labyrinth.