Introducing ZenKraft's Stormy Red v2 B6 X-Treme Bi-Fold! Constructed from 5oz. red russet oil tanned leather, it has a semi-firm temper and holds 6 to 8 B6 inserts and one Field Notes comfortably! Multi-Function pockets hold pens, rulers, etc. without issue! B6 has proven to be the New A5 size in notebooks! It's the Stormy Red v2 B6 X-Treme Bi-Fold, from ZenKraft!