What kind of mizunos could i get if i have flat feet?

i have asics right now and i was thinking of getting mizunos but i have flat feet and i have weak ankles so i don't really know which ones i could get. i was looking at the Mizuno Wave Alchemy 10 (http://shop.run.mizunousa.com/products/productdetail/Wave+Alchemy+10+Women%27s/part_number=410412/1661.2.1.1.8625.27065.0.0.0?) but im not sure if these are the right ones for me. please help!