Everyone has their go-to water bottle. That’s where insulated water bottles come in: Just in time for the back-to-school season, some of the most popular brands— , , , and more—are dropping serious deals. Retailers are slashing prices in honor of back-to-school season, making this the perfect time to upgrade your hydration game (or your kid’s). We’re seeing major markdowns on best-selling models, limited-edition colors, and models that include accessories such as straws, lids, and carrying bags. We’ve rounded up the best deals on insulated water bottles that blend performance, style, and value.