I think you can still wear a size 7 Bobs. The Bobs are faked Toms and the only difference is their material. Bobs are made using a cheaper material than Toms and that is why they sell at a cheaper price. However, they both are the same size. If you want to buy one go ahead but remember they are faked.
ok toms are better because they last longer then bobs if you dont belive this try it ok buy one pair of crocket tom and vise versa of bobs if you wear them the bobs will break, well the material will because the size chart is different ok lets say you wear a 7 in running shoes you will need a 6.5 in toms but a 7.5 in bobs its not olny that i am a toms fan but it is you opinion but in the tennis shoes version of the toms the bobs are better but again the size chart is different ok in obs you wear a 7 you need to get a eight but my opinion is that you just go in a stpre that sells bob there are many trust me and try on to see what fits better now if you have a wide foot which i do not i would get bobs or wear your toms are the house to break them in because toms are more expensive by olny 5 dollar s they are made better so spend a little more to get the real thing and the shoe will last longer trust me :)