Ello Insulated 40oz Stainless Steel Tumbler Pistachio — Retractable Straw, Leak-Proof

The Ello Oasis 40oz insulated stainless steel tumbler in Pistachio is a leak-proof travel cup with a retractable straw that keeps drinks cold for up to 24 hours and tucks away for clean, spill-free sipping.

Designed for commuters, travelers, and busy days at the office, the Oasis combines a large 40oz capacity with double-wall insulation and a clever lid mechanism. The retracting straw hides inside the lid when not in use to prevent leaks and keep the drinking surface protected, while the tapered body fits most cup holders. Built from BPA-free materials and safe for top-rack dishwashing, this tumbler is meant to simplify reusable hydration without sacrificing style.

How does the retractable straw prevent spills and stay sanitary?

The retractable straw tucks fully into the lid after a quick dial, sealing the opening to block liquid from escaping and keeping the straw tip off pocket and bag surfaces. When closed, the lid forms a leak-resistant barrier that makes the cup bag-safe.

• Dial-activated straw that retracts completely into the lid
• Closed position creates a leak-resistant seal for worry-free transport
• Hidden straw keeps the drinking surface clean from dirt and germs

Will the 40oz Oasis fit in my car cup holder and carry bag?

The Oasis uses a tapered silhouette engineered to slide into the majority of vehicle and stroller cup holders while still providing a high-capacity reservoir for long outings. The slim lower profile reduces wobble; the wide upper body holds more liquid without feeling bulky in hand.

• Tapered base fits most standard cup holders
• 40oz capacity for fewer refills on the go
• Lightweight stainless build that’s easy to carry in backpacks or tote bags

How long will my drink stay cold or warm inside this stainless steel tumbler?

With double-wall insulation, the Oasis keeps cold beverages chilled for extended periods—up to 24 hours under typical conditions—and helps preserve warmth longer than a single-walled bottle. Exact performance varies with ambient temperature and how often the lid is opened.

• Double-wall stainless steel insulation for sustained temperature control
• Large 40oz volume reduces the need to top up chilled drinks
• Opening the lid less frequently improves temperature retention

How do I clean and maintain the Oasis tumbler?

The tumbler is made from BPA-free materials and the lid components are designed for top-rack dishwasher use for convenient cleaning. For best longevity, remove the straw assembly and rinse seals periodically to prevent residue buildup.

• BPA-free construction and dishwasher-safe lid (top-rack recommended)
• Removable straw and lid parts for easy rinsing and drying
• Wipe or hand-wash gaskets to keep seals functioning well

Who this is for: The Ello Oasis 40oz tumbler is ideal for people who want a high-capacity, stylish bottle that performs on commutes, road trips, or long workdays—especially those who value leak protection and a clean, retractable drinking straw. It suits anyone who prefers fewer refills, effortless cleaning, and a cup holder-friendly design without sacrificing temperature control or portability.