Products Bristol Betty Vintage Get Groovy with Bristol Betty Vintage's 70s Fashion Collection Explore our Exciting Vintage Dress Collection at Bristol Betty Vintage Explore our Exciting Vintage Dress Collection at Bristol Betty Vintage Effortless Dresses: Explore Betty Basics Collection of Everyday Dresses. Betty Basics' own Betty Lyocell Shirt Dress is a must have for your wardrobe, because it's so versatile. It's a true shirt dress, buttoning from shirt collar down toward the calf length hem. It cinches at the waist with fixed elasticated panels at the sides, leaving the front and back flat. There is also a self fabric waist tie through the waist channel, so you can tie as you like. This dress is simple to style up or down, with the right shoes and accessories. Love, Caroline and your wardrobe wingbirds x