Of the two, I'd pick black/black.....if you want two-toned, I saw navy/black in both small and medium at Saks this weekend. I'm biased, because I own the navy/black, but it's the perfect combo of interesting two-toned and carefree (no worries about color transfer or dirty smudges). Good luck deciding!Would you choose the black/black or black/beige combo if you are given an option of both to choose?