Fly-Fishing Backpack with Chest Pack, 3-in-1 Multi-Configuration, Fishing Bag Price: $69.50 (as of 03/12/2022 03:25 PST- Details)

Chest pack with backpack for fly-fishing, can be worn separately or together. (The neck strap for the chest pack is not used while using the backpack only.)
Great for backcountry hike-in fishing, or wading fishing along a long stretch of a run.
No use for stand-still fishing, like lake fishing or surf fishing, when most of the time, you just stay at one spot, not moving around a lot.