Mammoth Ascent Tumbler 40oz Birch - Double Wall Vacuum Insulated Keeps Beverages Hot 12 Hours Cold 36 Hours

The Mammoth Ascent 40oz Tumbler in Birch is a high-capacity, double-wall insulated stainless steel cup designed for outdoor enthusiasts, commuters, and anyone who wants reliable temperature control through a full day.

• Capacity: 40 oz (about 1.2 L) of beverage space for fewer refills during long outings, workouts, or workdays.
• Material: 18/8 stainless steel with a durable powder coat finish for lasting strength and corrosion resistance.
• Insulation: Double-walled vacuum insulation minimizes condensation and keeps drinks at the desired temperature longer.
• Finish & Grip: Birch powder coat provides a secure, comfortable grip and extra durability in rugged conditions.
• Lid & Closure: Lid features a rubber gasket, stopper, and a flip-up straw for easy sipping and spill resistance.
• Temperature Performance: Keeps beverages hot up to 12 hours or cold up to 36 hours, depending on the contents and environment.
• Portability: Designed to fit in most cup holders, making it a reliable travel companion in cars, backpacks, and gym bags.
• Care: Dishwasher safe for easy cleanup after hikes, commutes, or daily use.
• Packaging: Boxed for convenient gifting or organized storage display.

With the Mammoth Ascent, you’ll enjoy all-day hydration with confidence. The large 40 oz capacity reduces the need for frequent refills on camping trips or long workdays, while the powder-coated Birch finish adds grip and durability in all conditions. Temperature stability means hot coffee stays inviting through back-to-back meetings, and cold beverages stay refreshingly cool during workouts or outdoor adventures. Its cup-holder compatibility, durable build, and dishwasher-safe care make it a practical, dependable choice for anyone seeking a versatile tumbler that genuinely supports an active lifestyle.