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When my first book was published, I knew that I needed to upgrade my beloved old backpack to something much more stylish and “adult” for meetings and signings. But since books aren’t exactly lightweight items, I needed a bag that was uber-durable and functional, too. And that’s when I found Herschel Supply Co., maker of high-quality luggage, backpacks, and bags designed with today’s traveler in mind. Their products are as timelessly chic as they are built to last, and now the lifestyle brand has ventured into a whole new realm: cooler bags, a modernized version of traditional hard coolers.

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Just in time for summer gatherings and adventures, Herschel launched the Insulated Program, a collection of cooler bags that come in a range of bright colors and fun patterns, as well as the brand’s classic understated hues. The line includes nine different styles — from 30-can-capacity coolers to adorable little lunch boxes. Below, we picked out a few of our favorites, and be sure to check out the entire collection here.

Made for the beach and the pool, this tote is ideal for keeping your items cool and dry — and it's designed for more than just food and drinks. Three outer pockets are perfect for items you want to keep accessible, like keys and phones, while the leakproof liner makes sure the interior contents are cool and the bag doesn't drip. Because of its flexible shape, you can use it for everything from wetsuits to cans to sandwiches. Bonus: It comes with an insulated bottle sleeve to keep drinks cold in your hand, too.

If you're planning to carry your cooler with you on a hike or a bike ride, an insulated backpack like this one is a must. It fits up to 20 cans, includes a clip-on bottle opener, and keeps water and wetness inside where they belong. That way, when you arrive at your destination, your items will still be cold and your back will still be dry.

Have more to carry? Then upgrade to the 32-can capacity Little America Backpack Pro, which is fully insulated and leakproof as well. Its two outer buckles keep your contents secure, and an outer pocket is perfect for whatever you don't want to keep cold.

With clean angles, a reinforced bottom, and a three-sided zipper, the Pop Quiz Cooler is a stylish reimagining of the traditional hard cooler. The handles Velcro together for easy handling no matter where your day takes you. This cooler holds as many as 30 cans, but it's available in a smaller, 12-can-capacity version if that's a better fit for you.

If you need something more petite, the Lunch Box features the same durable construction, leakproof lining, and utility of its larger counterparts but in a compact size. It's perfect for carrying lunches for one or snacks for a picnic.

This post originally appeared on Kitchn. See it here: One of Our Favorite Backpack Brands Just Launched Super-Stylish Cooler Bags for Summer