Differ only in size
The two Greg Williams X Billingham bags differ from each other only in size.
The 'Hadley Small Pro' is ideal for cameras such as Greg's Leica Q2, a Leica M or mirrorless camera with 2-3 small-to-medium lenses.
The 'Hadley Pro 2020' has more space allowing for cameras such as the Leica SL2 or a DSLR (without battery grip) with 2-4 small-to-medium lenses.
You can find out more about what would fit this Hadley Small Pro version by clicking on the 'What does it fit' section below.
Change the size option selected to 'Hadley Pro 2020' to view sizing and more information for that bag.