A little bit I was worried about making a bog of eternal paste in there but I might give it a shot, paisan.
Nah, it works perfectly. The one downside I've had is that if you use too much. The white soda particles can go through to the outside but that's easily wiped with a wet cloth way after. The main thing is to vacuum the bicarb well. It's a miracle powder, in how many uses it has.
White trainers, you don't even need to worry about anything forming outside. Trust me, the smell will be gone. It's absolutely brilliant.
I give the trainers a shake every 20 minutes and make sure that it covers everything your toes touch, too. Even a shake side to side and up and down