Skip the lunchbox. Use a soft cooler pouch.

The best “lunch box” for a long hike is a soft insulated pouch, not a hard plastic one.

Hard lunch boxes are heavy, awkward to stuff into a pack, and they crush whatever is around them. A soft cooler pouch weighs almost nothing, squishes into the gaps in your backpack, and keeps things cold for a good 5-6 hours if you toss in one frozen water bottle as an ice pack. That bottle doubles as drinking water once it thaws—two birds, zero extra weight.

As for freshness, the trick is picking food that doesn’t need to be perfect. Wraps beat sandwiches because they don’t squish. Hard cheese and cured meat beat deli slices. An apple beats berries. Nuts, dried fruit, and a peanut butter wrap will survive anything and weigh almost nothing.

Drinks are where hikers waste the most weight. Ditch the cans and juice boxes. If you’ll pass water sources, carry a filter or purification tablets and drink from the stream. If you won’t, carry one big bottle and a collapsible backup, not five separate drinks.

Your back will thank you at mile five.