So I am in the market for a camera bag. I am looking at the Think Tank Streetwalker Pro and am pretty well sold on it, but being unable to see one in person, I come to you fine photographers (and Im open to other suggestions). I currently have my D500, 70-200 2.8, 85 1.8, 50 1.8, 35 1.8, and 2 SB-800's plus 15" macbook pro. I am looking to get a little more than what I currently need so I don't have to immediately upgrade when I get a few more lenses. Must haves: Ability to hold body with 70-200 attached. Ease of access. Comfortable to hike with/carry all day. Waterproof. Ability to hold longer glass such as 400 2.8 for when I rent that to go to Yellowstone. Prefer a backpack style so my arms are free, but will entertain a over the shoulder bag as long as it does what I need. I am not brand specific, however I am aware of both Think Tank and Lowepro's reputation for putting out quality products. Thank you in advance!