Kai Burkhardt/CNN Underscored

We’re amid a cultural water bottle obsession, and while reusable water bottles — especially those with all the bells and whistles — can be pricey, we’re always keeping an eye out at Underscored for the best deals. Right now, we’ve scouted a great deal on one of the best water bottles courtesy of this Amazon sale. This 40-ounce bottle is now on sale for $28 instead of $38.

Best Tested
26% off

This easy-sipping water bottle comes with a lock to prevent leakage, and insulation keeps your favorite cold drinks cold for up to 24 hours. 

The incredibly well-designed Owala FreeSip water bottle originally caught our reviewer’s eye for the durability and great insulation tech found on the smaller 26-ounce model, all of which carries over to this larger edition.

It will keep cold drinks cold for up to 24 hours (it’s not designed for hot drinks), and you can choose how you sip with it too. You can either use the handy FreeSip spout, which lets you drink with the bottle upright through a built-in straw, or you can unscrew the lid for gulping, which is always handy in the middle of a workout. The wide mouth makes adding ice and cleaning the water bottle easy too.

Speaking of the lid, it’s built to be leakproof, with a push-to-open design that prevents spillage and keeps the spout clean between sips. The carry loop (great for walks and hikes) also functions as a lock so your hydration supply is extra secure. FYI: The cup itself needs to be hand-washed, but you can throw the lid in the dishwasher between uses.

Shop it over at Amazon before the offer runs out. Or just dive into all the week’s other best deals.