I've seen some ball bags in my day...
... but not like the Rock Sac ball bag. Let's just get one thing straight right now, this is hand made quality stuff we're talking about here. Much better than expected, and I'm sure the workers whom made this quality pouch have the strongest fingers around. Not only do I use it for my daughter's multicolor LAX balls, but I coach youth baseball and love this thing so much I bought another for all my baseballs and whiffle balls and such.
The base of the bag is sturdy, no matter how many balls are jammed in there and stays upright. The handle is strong and definitely don't have to worry about the stitching coming loose. The zipper is also notable as the design ensures that it doesn't get caught on anything. The material also holds up to unwanted discoloration and from what I can tell so far, it's pretty weatherproof.
I'm not easy on my bags and this is one of the best I've had, especially at the price point. The other coaches on the baseball team ask me about the rock sac all the time.
Great work! Highly recommend!