Bit late to the party, but something to be aware of if you're buying Solovair. I have a pair of astronaut boots, had them for about 20 months, worn them almost daily and I need to get them resoled now. I went to my local cobblers and they said they don't do Solovair, they just do glue jobs. I went to Solovair (I'm local to their factory) and they said that they're currently doing so much business that they're not able to offer resoling. They provided details of two webshops (keycobbler.co.uk and bootrepaircompany.co.uk) who do offer this service, but that involves sending them off for weeks and weeks. So I'm going to need to buy a second pair of boots to wear while my first pair are out for repair. And the resole is a significant chunk of the original boot cost: I spent under £170 on the boots, and they're going to cost £70 to resole plus shipping.
I'm still going to do it, I love them and I'd have spent a similar amount on trainers in the same period just through wear and tear, but it's not particularly a money saver or a convenience.
I guess that when I do have two pairs I'll be able to rotate them daily so this will be something that comes up every four years rather than every two.
Where would one go to get a custom made backpack with double stitching?