It's roomy and tough! So I'm packing these cases with up to 5 diaphragms and have 2 separate cases loaded one stocked with my A game and my 2nd lineup in another.
Another bonus is it's tough, keeping the case from getting crushed putting on a belly crawl or a hard lean on a tree. It can easily attach to a pocket in my vest for a quick grab. As much as I have invested in diaphragm calls, I needed a way to keep my calls in the best condition...this case does exactly that!!