Can holder or koozie: which problem are you solving?
Separate temperature, resting support and spill prevention before choosing.
For temperature
An insulating sleeve has a different job from a wider resting base. Choose an insulating product by its own specifications; Steadi is not presented as a cooler or temperature-control product.
For a wider resting base
Steadi fits around a compatible container and rests with it. It can be moved between suitable spots without a clamp or permanent installation.
For an open top
Neither a wider base nor an ordinary open sleeve closes the can. If the opening is the problem, choose a suitable closure or different drinkware for the situation.
Do not assume accessories stack
A sleeve changes the container’s outside dimensions. Measure and check full seating rather than assuming a can-plus-sleeve combination will fit.