got this bag because I needed an extra one so I can have one for outdoors and one for indoors climbing.
I have skinny but long fingers and this bag is big enough for my hands. My other bag is a prAna jumbo and that one can hold more chalk but the c80 has a bigger opening thanks to the stiff brim.
The drawcord is nicer on the c80: Easier to close and open the bag.
I couldn't really care less about the extra phone/wallet pocket but I guess it's nice to have. I might need in the future, who knows.