
Thermos Stainless King Travel 16‑oz
Score: 84/100
JoyJolt Savor
Score: 71/100Rankings

The Thermos Stainless King Travel Tumbler combines vacuum insulation that retains heat for 7 hours and cold for 18 hours with a leak-proof DrinkLock lid and built-in tea hook. Its lack of a handle and incompatibility with microwaves may affect some users. Suited for commuters and travelers needing reliable temperature control in a compact, cup-holder-friendly design.

JoyJolt Savor mugs are double-wall insulated glass espresso cups that keep beverages hot or cold while showcasing the drink through clear glass. Their glass construction makes them prone to breakage and the exterior can become slippery when wet. Ideal for espresso enthusiasts who value style and temperature control.
| Attribute | ![]() | ![]() |
|---|---|---|
475 mlbest | 159.7 ml | |
198 mmbest | 90.93 mm | |
420 minutesbest | — | |
84 mm | 93.98 mmbest | |
1,080 minutesbest | — | |
| ↓ lower better | 136 gbest | 272.16 g |
— | 2 piecesbest | |
5 yearsbest | 1 years |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Capacity & Size(3) | ||
Capacity (ml) | 475 ml | 159.7 ml |
Height (mm) | 198 mm | 90.93 mm |
Diameter (mm) | 84 mm | 93.98 mm |
Performance(1) | ||
Insulation Type | Vacuum | Double wall |
Build & Materials(2) | ||
Weight (g) | 136 g | 272.16 g |
Material | Stainless steel | Lead-free borosilicate glass |
Warranty(1) | ||
Warranty (years) | 5 years | 1 years |

Products in the top-left offer the best value (high score, low price).

Professional reviewers commend the JoyJolt Savor mugs for their elegant double-wall borosilicate construction, which delivers strong thermal shock resistance and maintains drink temperature without condensation. They appreciate the clear glass that showcases espresso crema and note the convenience of dishwasher, microwave, and freezer safety. However, they also warn that the glass is inherently fragile and the limited warranty may not fully protect against breakage.
Everyday users overwhelmingly praise the mugs for their perfect espresso size, visual appeal, and the way they keep drinks hot without burning hands. Common complaints focus on fragility, with multiple reports of mugs breaking shortly after purchase, and the slippery surface when wet, especially during washing.
“Perfect size for Nespresso or double espresso shots”

“Love the look, shape, and content visibility”

“One user broke two within days, another noted fragility despite liking them”


