I don't care I like Batgirl costumes with pouches. The stripes add an element of fun that fits Steph perfectly. Aw, she looks so angry/violent/smirky kicking bad people in the face! Good characterization just on the cover.
I'm less enthusiastic about the shape of the belt. It looks good, sure, but it's good to be sewed to the costume and not be as half-hanging off a hip as it looks, right? A loose belt would be awfully unpractical.