The Wilfred Free Murdock Dress is a ribbed, midi tank dress. This is a midi tank dress with a rounded square-neckline. It's made with stretchy cotton rib fabric. Garment Dye (Gd) Colours: The unique colour of our garment dye is achieved through a special process — instead of dyeing the fabric, we dye the finished garment for a dimensional, washed-down look and soft feel. Results vary from one piece to the next, so yours is truly one-of-a-kind.