[Flap with Stud] I use it with my Billingham S2 shoulder bag when I need to carry extra stuff, and sometimes by itself as a belt pouch for a little Fuji X-E3 with a pancake lens. Works well for both applications

[Universal] As long as the photographer knows what can & should comfortably fit into the 3 main compartments and the couple of extra pockets, then this is perfect.
Dont look for all the modern things of lap top holder, water bottle holder etc.
that is not what this beautiful bag is about.

[Universal] I love the design and like the way it fastens to the bag. When that thing is snapped down it's not going anywhere accidentally. The AVEA 3 works beautifully on the Hadley Pro but understand it's pretty small and will not hold a flash or lens or even a filter. I use it for my memory card wallet, ink pen, lens pen and small flashlight. There is a cinch at the top under the flap that works very nicely to secure items. For an additional 3rd layer of security, I clipped the ribbon from my card wallet to the cord of the cinch. Pricing is odd. The 3 and 5 are the same price and one is 4 times the material of the other. I ordered both and when you see the difference the pricing really becomes puzzling. I guess they figured them like shoes.

[Flap with Stud] Perfect for my Billingham Hadley Pro bag. The AVEA 5 doesn't fit very well for me. AVEA 3 is smaller and more compact. I used to put 2 of them on my bag. Billingham's quality and finishing is amazing!

[Yes] I purchased this pouch because I needed a place to put my keys. I use my Hadley Pro bag everyday. I use it as both a camera bag and purse. Since I am female, I can carry my camera bag everywhere and no one knows any I am carrying camera gear. I needed a place to put my keys and I decided to try this pouch. It is perfect addition to the Hadley Pro. Color match is perfect. Size is perfect. My keys are now easy to reach as well as very handy. I love this little pouch. If you need something to carry small items in, this pouch is great. Just remember that it is small. My iphone 5S fits in it but my friends 6S will not. Still, it works great for me.

[Flap with Stud] What can I say about this Billingham bag? It’s typical Billingham quality of course. The design that swallows way more gear than it should.� I was using a Hadley Pro when I added a third body, all Fujis. The Pro could hold three bodies and a few lenses but it was getting tight. It was also hard to stuff in the T1 or T2 with the grip. The One allows for the battery grip and an E-2 and E-3. Eight lenses are in there and a couple of flashes. Plenty room left for the usual junk we haul along.� It’s a wonderful bag. My only complaint is that they didn’t use the button-up flap on the pockets like the Hadley Pro.

[Empty] I own several Billingham bags: Hadley Pro, Hadley Large and f1.4. The oldest of which is the Hadley Large. The challenge with the Hadley Pro and Hadley Large is that these bags are narrow where it takes some fiddling to get my Fuji X-T2 and X-Pro2 cameras in and out with lenses mounted. I wanted a lightly wider bag (front to back) to make it easier to use with two cameras. When the Hadley One was announced, I ordered it right away. The bag answers my prayers. It also features a 2 wide removable strap which makes the bag more comfortable when loaded up with gear. A dedicated laptop pocket accommodates my 13 MacBook Pro AND iPad Pro 9.5. When I travel, however, I only take my iPad Pro and leave the laptop home. The fit and finish is the usual top-notch Billingham quality. It should last for years and the nob and leather closures are quiet and fast to open and close. No velcro ever on a Billingham bag. I purchased mine in fibernyte Khaki with chocolate brown leather trim. This is the same color scheme and materials as my f1.4 bag. It's beautiful and doesn't scream expensive camera gear inside.

[Empty] Presently using it for my Binocs. Beautiful case, well made. Curious how long the snap button will work before ripping out the fabric? Wish they had gone the prong route.

[Empty] I chose the Hadley Pro bag over the Pro Large and Packington because it is smaller and I wanted a bag specifically to travel light. I later purchased the AVEA 5 side pouches due to the fact that they were padded, could accommodate a flash and/or prime lens, all within easy reach. The pouches add bulk, to the Hadley's otherwise svelte form, but these pouches can easily be added or removed according to the requirements of the shoot. I am particularly impressed with the craftsmanship and appearance of the side bags but the high quality commands an equally high price.

[Yes] fits 2 leicas, a hassy and a 15" macbook pro in the laptop pocket. plus all the extra little stuff. shes a goooood girl