How many pages can this binder hold?
We can fit an entire dive log book into the binder. The blue dive training log fits best; the red dive log book is slightly larger so when zippering the binder closed the corners sometimes get caught. (Notice how the corners of the dive book are rounded versus square?) Simple answer is cut a small amount off the corners. Replacement dive pages not in a bound log book work best....I am estimating about 50-75 pages.
I use it and it holds two of the PADI divers log books - they are maybe 50 pages each - not sure. The corners of the new PADI log book bend a little, because it is wider than the beginner PADI book I have in there. It is not a high volume binder for keeping hundreds of dives, but nice for travel. It also has a clear insert for your main cert card, three pen holders, a velcro pocket for extra cert cards, a little clip for keys or something, and a web pocket that I store my plastic RDP card in.