The Bane and Crab Spider Backpacks work excellently with this design since it looks like it is attached to the Chest Detail. Whatever style you use, you are free to use whatever color choice you wish... although the Dark Blue/Dark Blue color scheme looks great!
Alternatively, all designs above "can" be mixed and matched to give a "unique" looks to our official uniform. Some designs I mixed and matched are:
*NOTE* For the uniforms above that do not use the Ninja Mask Face Detail, I added the Face Option > Neck Cover and made it black