Vacations are the best, but getting to your final destination isn’t always a good time. When it comes to air travel, leaving prepared and traveling light seems like the only way to go these days. I’ve lost too many bags and suffered damage to items I love at the hands of careless airline employees. I’ve finally mastered the art of getting everything I need into one carry-on so my bag never leaves my side. Here’s what to look for in a great bag that’ll fit in the overhead bin, hold up to rugged abuse, and be there for you on countless trips year after year.