Thirsty? This massive 40oz HydroJug Traveler we love just got a 40% price cut for Prime Day

If you’ve ever tried to manage a chaotic morning while hauling gear, wrestling keys, and keeping track of a giant water bottle, you know the struggle. Most 40-ounce tumblers look promising on the store shelf, but quickly become a clumsy, leaking liability the second you step out the front door. I was on my third replacement lid for a competitor’s cup before I finally decided there had to be a better way to stay hydrated.

It is, it’s called the HydroJug, and it’s 40% off for Amazon Prime Day.

For me, the ultimate stress test happens every single day right at home. I use it on the ranch, where a hydration flask doesn’t just sit nicely in a cup holder, but gets tossed into the passenger seat of the truck, knocked off fence posts, and dragged through thick dust and mud. In that kind of environment, a subpar bottle doesn’t last a week.

The HydroJug Traveler is tough enough to survive the daily grind, yet surprisingly lightweight so it doesn’t feel like a barbell when it’s fully loaded with ice water. And right now, just in time for Prime Day, this absolute game-changer of a tumbler just got a massive 40% price cut.

HydroJug 40oz Traveler

Kendall Cornish

The HydroJug Traveler 40oz Tumbler is a premium, triple-wall vacuum-insulated stainless steel bottle designed for maximum temperature retention and zero messes. It features a completely shatterproof, secure, Ambidextrous Flip Straw Lid that ensures a truly leakproof seal even when flipped upside down.

Boasting a tapered base that fits perfectly into standard cup holders, an ergonomic rubberized handle for a secure grip, and a wide-mouth opening that is entirely dishwasher safe, it effortlessly combines rugged durability with everyday convenience.

Your Amazon Prime Day FAQs, answered

What is Amazon Prime Day and when is it?

Prime Day is Amazon’s biggest sale of the year, offering deep discounts on bestsellers and everyday essentials. This year’s event runs from Tuesday, June 23 at 3 a.m. ET through Saturday, June 27 at 3 a.m. ET.

How long is Prime Day?

This year, shoppers can take advantage of four days of Prime Day deals: Tuesday, June 23 at 3 a.m. ET through Saturday, June 27 at 3 a.m. ET.

What’s new about Prime Day in 2026?

In addition to pushing up the sale to June, Amazon is including several new programs and promotions, including:

• Today’s Big Deals program: New daily discounts up to 50% off or more
• New deals dropping as often as every five minutes during the sale
• Prime members gain access to exclusive travel deals
• Prime members who spend $15 or more on a qualifying online grocery order have a chance to win free groceries for a year
• Prime members who set up a deal alert with Alexa have a chance to win a $1,000 Amazon gift card
• Through June 26, Prime members can get a large pepperoni or cheese pizza from Little Caesars for $5
• Through June 26, Prime members who purchase a new car through Amazon Autos get a $1,500 Amazon gift card

Do you have to be an Amazon Prime member to shop?

Prime Day and all its amazing discounts are exclusively available to Prime members. However interested shoppers can grab a 30-day free trial to try Prime, and its many benefits with no strings attached, and gain access to exclusive deals and the convenience of fast, free shipping.

What are the best deals?

From reporting on Amazon sales for years, we can tell you for certain that Prime Day is the ideal time to stock up on beauty and skincare staples, score big-ticket tech for less, bestselling vacuums, and comb through the massive catalog of Amazon best-sellers. Plus, since this year’s sale runs before the Fourth of July Americana-themed deals and summer hosting essentials.

Is it worth it?

We certainly think so! Prime Day is a great chance to score deals on thousands of best-sellers, top tech and appliances and every day essentials. Our team diligently sorts through all the offers to find you only the very best items to grab on sale.

When is the next Prime Day?

Already wondering when Amazon’s next Prime Day is? We expect Amazon’s October Prime Big Deal Days sale event to return in fall 2026. Follow Post Wanted’s around-the-clock coverage, and you’ll be the first to know about headline-worthy sales. Click here to find all of the best deals.

Why Trust Post Wanted by the New York Post

This article was written by Kendall Cornish, New York Post Commerce Editor & Reporter. Kendall, who moonlights as a private chef in the Hamptons for New York elites, lends her expertise to testing and recommending cooking products – for beginners and aspiring sous chefs alike. Simmering and seasoning her way through both jobs, Kendall dishes on everything from the best cookware for your kitchen to chef-approved gourmet meal kits to the full suite of Ninja appliances. Prior to joining the Post’s shopping team in 2023, Kendall previously held positions at Apartment Therapy and at Dotdash Meredith’s Travel + Leisure and Departures magazines.