The Callaway Big Bertha B21 generation doesn't include the OS variant.
Variant
Used Callaway Big Bertha B21 OS
2021
The OS (Oversized) variant boasts a larger clubhead profile, pushing weight to the perimeter for unparalleled forgiveness. This design minimizes twisting on mishits, ensuring maximum stability and straighter shots, perfect for golfers needing ultimate accuracy and confidence.
Showing 0 models
Updating results…
Nothing here yet
There's nothing to show here right now.
Overview
The Callaway Big Bertha B21 generation also comes in one other variant, the Standard.
Other variants
Compare variants
Explore
Discover similar clubs that might interest you.
Release timeline
Oldest → newest