I love the arc'teryx bags overall. They have great designs and actually look good unlike many chalk bags. The c40 is a pretty good size, I probably should have gone with a c50p, but the c40 was all that was in stock so I just went with it. I definitely recommend that if you use a chalk sock, use a small one, if you use a larger design it can be a little tighter than ideal for the bag. Overall, this bag is perfect for people with small to medium hands and want a smaller bag for bouldering or sport climbing.