Bag recommendation for OM-D

I personally find all these bags very expensive and over priced. I hvae some Kata backpacks from my Canon days and use the i467 on most trips to bring laptop and gear. Sometimes i leave the laptop in the hotel and put the om-d and lenses and tablet in the backpack and walk around. It is light, carries a lot, and protects the gear. When i want to travel lighter, I being along an Apex Union Messenger Bag. Bought it on Amazon for $35. It is the size of abThinktank Retrospective 5 and fits inside the kata when you take the bottom insert out. Two bags in one for the price of one of these fancy and over priced fashion bags.