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OVER-ENGINEERED
HARDWARE.
ZERO COLD LEAK.
An in-depth structural review of the YETI Rambler 20 oz Tumbler. Explore the physics of vacuum barrier seals, 18/8 alloy thickness, and the magnetic slider mechanism.
Empty Weight
0.9 lbs
Height
6 7/8 in
STRUCTURAL OVERVIEW
Interactive engineering teardown. Select a component below to review its material specifications.
Double-Wall Vacuum Insulation
An absolute molecular vacuum between two high-grade stainless steel walls. Keeps convective heat transfer at zero, ensuring cold drinks stay iced for 24+ hours and hot tea stays hot for up to 12 hours.
ENGINEERING BLUEPRINT
We zoom in on the specific structural dimensions and highlights of the YETI Rambler.
3 1/2” Lip Diameter
Precisely proportioned lip diameter allows easy drinking and makes ice refills simple. Seamless rim prevents bacterial nesting.
Tapered 2 3/4” Base
Sized specifically to match standard cup holders in all major USA passenger vehicles, ensuring secure positioning while driving.
No Sweat Design
Total thermal containment prevents moisture condensation on the exterior wall. Hands and wood surfaces stay completely dry.
DURABILITY VIDEO PROOF
Watch the YETI Rambler survive direct impacts and hold temperatures over extended timelines.
Watch Review
YETI Rambler 20 oz Physical Build Specs Review
EXPERIENCE OVER-ENGINEERING
The YETI Rambler 20 oz is built to survive a lifetime of drop shocks, dishwasher cycles, and daily commutes. Secure your authentic unit today.
TECHNICAL QUESTIONS
The tumbler body is engineered with 18/8 kitchen-grade stainless steel (18% chromium, 8% nickel) which is rust-resistant, puncture-resistant, and entirely BPA-free. The lid is made from high-strength Eastman Tritan copolyester with a neodymium magnetic slider.
The YETI Rambler 20 oz stands 6 7/8 inches high and has a lip diameter of 3 1/2 inches, with a base diameter of 2 3/4 inches. It weighs approximately 0.9 lbs empty and fits perfectly in standard cup holders.
The No Sweat Design uses the double-wall vacuum insulation barrier to prevent heat transfer between the interior liquid and the exterior wall. This completely eliminates moisture condensation on the outside of the cup, keeping your hands and desk dry.