The inside of the bag is wide open with straps fastened to the bottom to additionally secure the kites to the bottom of the bag if necessary. For travel that would be great but for normal use, I just leave the straps in the bottom and that allows me easy access to slide the kites out of the end (like any normal sausage style bag). The zipper does wrap all the way around the end to the bottom, so the end of the bag can be "peeled" open just like a banana which gives you unobstructed access to every kite in the bag. Other than the straps fastened to the bottom, it is just an open cavity style storage, no other dividers are there.
The side pockets each have individual vertical webbed sleeves for 4 linesets each. Along with a zippered inner pocket to stuff tools, extra linesets etc.. The overall size of the pocket is very nice but can start to get a little full if you stuff the inner pocket and the outer sleeves full of linesets & stuff.
The second outer pockets can be completely unzipped, removing the exterior cover leaving only the inner pocket for storage - or it can also be used as a second pocket stacked onto the first. Again there are two of each of these. I am sending the outer covers in to be custom embroidered for me which I hope will look great.
Hope that helps.