Welcome to the big wide world of fly fishing bumbags.
It's true there are many rabbit holes down which you could jump when talking about the right gear for the right fly ishing experience, but it's a safe bet that none of those rabbit holes are any deeper than that inhabited by bumbags. Preferences and opinions differ wildly.
When it comes to fly fishing bumbags, the best place to look is the chatrooms.
There are many, many snippets of information, tips and advice which will help inform you decision making around fly fishing gear, and there's much of it we've spent a lot of time in gathering for you on this website. But when it comes to fly fishing bumbags, we'd be here all day.
So we recommend experimenting, listening and surfing... here are some golden chatroom nuggets:
"It's not all getting the Gucchi branded fly fishing bumbags.. all you need is practicality and versatility, which you can find on the market for half the price of big brands."
"The 'Snugpak' is a military First Aid pack, seen them used by some of our lads. Heavy duty, which is great but perhaps a little heavy for fishing."
"I bought an Orvis chest pack (Safe Passage) thingy that I love. So comfortable and light you hardly know it's there, plus a three point harness which expands to fit over winter clothes, or tightens up for a summer t-shirt."
"I've used a waist pack for years; very comfortable to tot around in ... AND do you really need to lug around all that extra stuff?"
"The waist bag certainly provides enough storage space and features to meet my needs. I am trying to avoid carrying too much stuff with me and focussing on the fishing rather that the amount of stuff I can carry, using a waist bag certainly makes you choose your kit to suit the conditions of the day."
"I tend to have what I need in my waistcoat, but have a small backpack with a coat, sarnies, other clobber in, but it's obviously higher up and a bit further away from the water. I have quite a good Lowe Alpine bum bag for walking, but the Maver one has more room (and that handy bottle pouch!)"