Striped shirts, weather they are t-shirts, tank tops, or long sleeve shirts can dress up or down pants or a skirt. Wear them with a pair of jeans and a belt to be casual yet still look put together. Add a blazer to this outfit to dress it up and make it work appropriate.
Bigger stripes are the most flattering. They elongate your body making you look slim and tall. A pencil skirt with a striped shirt tucked into it would be a great look for dressing professional. Add some accessories to dress it up even more.
Don't be afraid of stripes! Sure, some can make you look thick and are unattractive. Search for the type of striped shirts that work good with your body shape. Mess around with different looks. Wear a plain colored maxi skirt with a striped tank top to have a casual summer or spring look. Add a jean jacket on top for warmth at nights.