The ultimate foundation for off-duty style? A navy and white horizontal striped crew-neck t-shirt with jeans. For something more on the daring side to finish off your outfit, complement this look with a pair of navy and white athletic shoes. No doubt, you're looking at a savvy pick for a roasting hot warm weather day. So if you're on a mission for outfit ideas on how to dress as you move through your teens, this outfit is perfect.