When choosing an apron, selecting one that fits well is important. The apron should be snug around your waist and long enough to cover your thighs. If you're between sizes, it's better to choose the larger size so you can adjust the fit as needed. In addition, be sure to select an apron that's comfortable to wear; you don't want it to be so loose that it gets in the way, but you also don't want it to be so tight that it's uncomfortable.