702 is an auto size up.
Does not matter if fully or partially sanforized, the denim has residual shrinkage beyond the 2nd wash ... If they're snug now & u haven't washed yet, u are in for some hurting. I'd flip them now while they still got more value.
I'm not one who'd battle with a pair of jeans just to get in__ over stretching compromises the construction of the jeans.
In fact, when I got 202SP O/W__ same deep indigo denim in a 201 cut, I even sized up 1, for...