The 8 Best Lunch Boxes for Adults

If you are looking for a well-insulated, easy-to-clean lunch box, look no further. The Hydro Flask 5-Liter Lunch Box has enough room to fit just about anything from leftovers in a container or a smattering of snacks to your traditional sandwich or salad. The exterior is stylish, comes in a variety of classic colors and is rugged enough to take the bumps it may incur from your commute or being knocked around your desk. The inside is just as durable with a BPA-free and FDA food-approved lined interior that makes wiping down any spills with a paper towel a cinch. With double-walled insulation, you can assure that your cold food will stay cold (and your warm food will stay warm) for hours.

Tired of ransacking the freezer for an ice pack to keep your lunch cold? There's no need to do that with the PackIt Freezable Lunch Bag. Simply put the entire bag into the freezer each night, and it will keep your lunch cold for around 10 hours. At less than $20, this lunch bag is a steal. It's perfect for a sandwich, snack and drink, and it folds up nicely for easy storage.

If you're serious about your work lunch, this bento box-style lunch box offers many options to suit your meal. It comes with two boxes, so you can bring both or one, with a place for cutlery and containers for any sauces, condiments or dressings. The top doubles as a bamboo cutting board for any last-minute prep, and you can rest assured that liquids won't leak into your bag with the airtight, leakproof lid.

Gone are the days when hot lunch means lukewarm leftovers out of a container nuked in the microwave. Technology in lunch boxes these days means an actual hot lunch. This self-heating lunch box is designed to heat up refrigerated food simply by plugging in the box at your desk. You'll have a hot lunch in around 25 minutes, with an insulated liner that keeps it hot for up to two hours. It's so powerful that it can even cook rice or steam vegetables. As an added bonus, UV light helps to kill any lingering bacteria.

A classic sandwich calls for a classic lunch box. The L.L.Bean Flip-Top Lunch Box is perfect for the whole family (even kids love them), but their timeless design makes them perfect for adults, too. The water-resistant insulated box is easy to clean and made to last — designed from the same material as their backpacks. Perfect to fit a sandwich, a snack and a drink, there's even a mesh interior pocket for slipping in an ice pack.

If taking salads on the go is your jam, then this bento-style lunch box — designed for salad eaters — is for you. It features a top compartment to keep all of the salad toppings separate so they don't get soggy and has plenty of room for your lettuce or grains on the bottom. It comes with a fork and a sauce container with a lid, as well. Plus, the freshness technology will keep it from becoming a sad, wilting pile of greens.

Enjoy your leftover soup, ramen, chili and more with the Crockpot Lunch Crock. This electric lunch box will quickly heat your meal come lunchtime by simply plugging it into an outlet. The pot features a tight-sealing lid to ensure no spills or leaks happen in transit, while the detachable power cord stores away neatly on the bottom when not in use. The Lunch Crock is also dishwasher-safe for easy cleanup.

Built is known for their sturdy coolers, so you can rest assured that your lunch will stay cold if you need it to. The Gourmet Getaway Lunch Bag is made of neoprene (yes, the same material as wetsuits), so expect it to be durable and also extremely lightweight. The tote-style bag is also machine washable and available in a plethora of colors and patterns.