As a professional trainer for both obedience and hunting, there are a LOT of bells and whistles that come with the training game: high-value treats, low-value treats, clicker, bumper, and then what do I do with my purse when I can't keep an eye on it during class? I can take the essentials out (ID, cards, cash) and slide them into the back zipper pocket for safe keeping! The only reason I didn't give it 5 stars is that I could have ordered the same product from another site for a $1 more and gotten the belt that comes with it, but too little, too late on that one. Aside from that, GREAT bag! I *love* the purple too.