Downtown Los Altos has several children's boutiques, Marion Jackstons is the largest one. The store is mostly girls clothes (which is too bad since I have a boy). They have a nice selection of christening/baptism outfits and flower girl type special occasion dresses. There is a nice layette selection for tiny babies. For boys there really isn't much other than Quicksilver (which seems like an odd choice for a boutique brand). The brands they carry is rather limited, I've never bought anything here but I do browse when I get the chance. I think there are better alternatives for European boutique brands.