Snag it for $40 at Amazon

Summertime should be about warm weather, not warm drinks, take it from Kylie and Kendall Jenner.

That’s right, the famous sisters may have just found the solution if you’re looking for an insulated cup to keep beverages cool while traveling, working out, or lounging by the pool without it spilling in the process. On June 5, they were spotted leaving a pilates class while wearing coordinating athleisure ensembles — and carrying coordinating spill-proof cups.

While the A-listers’ style is rarely similar, they both toted versions of the tumbler that keeps drinks “colder than a Stanley,” per shoppers, during the outing: the HydroJug Traveler Water Bottle.

Available on Amazon, this 40-ounce tumbler has amassed more than 7,500 five-star ratings from shoppers, and its popularity doesn’t seem to be waning: More than 5,000 users have added the cream-colored option to their carts in the past month alone.

What’s great about this water bottle is that it combines all the best qualities of its rival models — like an easy-to-hold handle, ambidextrous lid, and triple-wall insulation — with upgraded features. Namely? A circular flip straw and a completely leak-proof design.

While Kylie and Kendall appeared to carry the cream and butter yellow shades, respectively, the jug is also available in 20 additional colors and patterns, including blush, black leopard, and kelly green.