The celebrate the end of summer and the coming of the new school year, Otterbox is having a 20%-off sale on a number of its rugged smartphone cases. If you have an iPhone X, you can choose from the company’s Symmetry Series, featuring cases with neat graphics and artistic designs. Or if you have an iPhone 8 Plus or 7 Plus, the prices have been slashed on Otterbox’s famed Defender Series (in a variety of colors), too. There are deals on things like coolers and thermos, too, so fish around the site to snag great gear on the cheap.