Originally Posted by andy_d
I was told today that I should buy my new boots first before getting custom insoles done as it may not fit properly. I guess it makes sense but I also didn't think I would have to get new ones every time I get new boots (potentially)
Each boot has a slightly different footprint shape... when custom insole is made, it is trimmed to the shape of the that footprint. Usually, if the boots are not completely different sizes/shapes... the insole will fit in the new boot with minimal modification (you might have to trim like a quarter inch off the tip).