My one requirement for the perfect beach day? A delicious packed sandwich that doesn’t get soggy. After a lot of trial and error, I’ve learned exactly what that is: a classic Italian sub. Nothing beats the layers of cured meats, salty cheese, shredded lettuce, and thick tomatoes. And thanks to a few smart assembly tips, it stays fresh and crisp all day long. Plus, you can easily feed a few mouths with just one sandwich. Here’s how to make the absolute best one.