[Universal] It is bigger than one might think.  I initially purchased this to carry a compact Sony RX-100, but the AVEA 5 is too big.  I like the bag enough that I have decided to keep it.  The pouch matches my Billingham Hadley bag perfectly.  It easily hold my X-E1 or X-T2 camera body (no lens attached) or my Nikon SB-800 flash with room to spare.  A great extra pouch for those items, such as an extra body, flash unit, or filter set than one might use occasionally.

[Empty] Got this as a smaller case for a Leica M10 when I want to pack light with the 40mm M-Rokkor (or Summicron) lens. Works well for this purpose, allowing me to throw the camera in my commuting pack safely. The ability to use it to carry some extra stuff, attached to the side of the Hadley Digital is a nice bonus.

[Universal] Nice small sized pouch with typical Billingham quality. Good for batteries, cleaning supplies, other small items. Attaches securely and has a nice drawstring top.

[Flap with Stud] Not long ago I was looking for a new camera bag. My research lead me to explore The offerings from Billingham of England. The research also demonstrated uniformly positive remarks from all who bought them.With these factors in mind, I ordered the Hadley Pro. On a recent trip to photograph a wedding, I found the bag provided exceptional protection for some expensive Nikon glass. Everything I needed was readily at hand, and even the rain did not affect my shooting. The internal padding was excellent, and easily configured. I found that I could make use of some additional room, so I ordered two more Avea side bags. I am enthusiastic about the ease of use, and would highly recommend this bag to professionals and amateurs alike. It is wonderful!

[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.

[Yes] 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.

[Universal] 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.

[Universal] 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!

[Flap with Stud] Billingham's AVEA 5 pouch is of the same sturdy quality as the Hadley Pro bag. I ordered two pouches and they snap perfectly on the side of the camera bag, increasing my total protective carry of equipment. They work great for light meters, flashes, chargers , or as a catch all for all that small stuff you want to bring with you. There are countless uses for this accessory.

[Empty] EXCELLENT ADDITION MY BILLINGHAM M LEICA COMBINATION BAG