Where can I find modest cami's?

I am looking for white Cami's for my 15-year-old daughter which are both modest on top and long enough to show beneath her top at her hips (i.e. the current style). When I say modest I mean not showing any . The only kind I have found (at a thrift store) is from Trend and Touch, an Israeli company whose web-site is completely in Hebrew! Please help!!