I love Lowepro bags. I have owned quite a few over the years. I have had a Lowepro Slingshot SL 250 AW III for about 2 years for carrying my 'compact' setup. I love this bag and have worn it for many hours without problems. I find it pretty easy to get stuff in and out while wearing it. Slingshot SL 250 AW III Just for your info, my bigger bag is a Lowepro Flipside 400 BP AW III.

Do you like shoulder bags? Slings? Messenger? Not sure and just looking?  For walks and almost every other application I love sling bags. They sit across your back like a small backpack, but you have instant access without removing the bag by simply sliding it around to the front. This is big advantage for walks, having something on your back is a lot more comfortable than a shoulder stap. I have had several including Peak Design and Thinktank but ended up with Tenba Solstice 10L, and later the new 16L. I actually prefer the older 10L. It has plenty of room for your listed gear.  One of the main reasons for choosing Tenba over the other two is that the access opens wide and will stay open once the bag is broken in, while the other two use a flap. All are accessible without removing the bag. Here's a short video showing one in use.  https://youtu.be/3Ll04lkWLu0

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