Having trouble fitting DS's orthotic innersoles in shoes/trainers.

[nobodysfool]

DS (10) has flat feet and overpronation . He has had innersoles made at the hospital for that last few years.
He wants to start running for exercise so we saw the orthotic dept again and they made a carbon fibre set that are meant to be better for running.
We tried them in running shoes in a high st sports shop but they either wouldn't fit or raised his foot too high in the shoe so that he couldn't keep them on.
Decided to go to a proper running shop and ask their advice.
They also had problems fitting them in ANY trainers.They suggested that they made a pair for him (they take referals from a local private hosp).So £45 later we have another pair of innersoles but we are having the same problem AND they are coming apart already- not to mention the sharp edges.
I'm at my wits end and don't know what to do next.
Would it be very damaging for my son NOT to wear them in trainers etc and just keep them in his school shoes?
Any advice would be great.

[Idefix]

Ignore if this is very obvious but did you remove the original shoe/trainer insoles.
This is the only way I can get dd insoles to fit.

[Thebookswereherfriends]

I wear insoles for very similar problem and find it a massive pain in the rear to find any footwear that is comfortable/fits right with insoles. All you can do is go into lots of shops and try on all the trainers! I would say that if he is running regularly it will be damaging to not have them in the trainers - it will cause back pain and leg pain.

[Mummytron]

Yes I have the same trouble for both my children. Boys are doable because they have a lot of trainers and trainer style shoes but girls...oh my word, all dainty or boots that are soft around the ankle. Sigh

[OldBeanbagz]

My 11yo DS has orthotic insoles and is able to fit them in his Brooks trainers. You have to make sure that the insole in the shoe is completly flat so take out any moulded insole that's already in there.

I'm surprised that you have sharp edges on the insoles. DS's are made of a very hard plastic and were custom fitted to his feet using a cast. He has never complained of hard/sharp edges. He's had them 18months now and they're still going strong. He'll definately outgrow them before they fall apart.

I wouldn't recommend your DS running without his as this could cause back/knee/ankle/feet problems.