We introduced the Codex B6 to our Custom Made Codex Collection.
The Codex B6 is compatible with the B6 Stalogy insert.

Left hand side: 1 full height slip pockets | 6 horizontal credit card pockets | 1 small bottom pocket.
Right hand side: 1 full height slip pocket | 1 bottom pocket

Van der Spek CODEX B6 size is compatible with 182 x 128 x 14mm (+/- 7.2 x 5.0 x 0.6 inches) B6 Stalogy 

Codex B6 Cover size: 196 x 144 x 25mm (+/- 7.72 x 5.67 x 0.87 inches) and flat size 196 x 293mm (+/- 7.72 x 11.54 inches)