I'm a big fan of the Pacsafe 100 with its steel cables as an antitheft device. However, I came across this strap after using the Adapt-It connection devices on my 5D2.
I wanted to connect the C clasps directly to the Adapt-It with no 3/8" nylon webbing between. I carry the camera across my chest, on my hip. The Pacsafe is too short to do this without the webbing connections.
The CityStrap comes in 2 lengths: 54" like the Pacsafe, and 65". The longer strap allows me to connect the carabiner claps directly to the Adapt-Its. If you like, there are two 3/8" nylon webbing connectors with stainless steel rings for connection.
As with the Pacsafe, a 4" sleeve slides over the connection to conceal the attachment from prying eyes. They will slide down as well even if the webbing is not used, as in my case. Actually, I found the sleeves worked better inverted, with the elastic part down around the attachment to the camera. It stayed in place better that way.
This strap is heavy-duty ballistic nylon, very tough and very well-made, as is the PacSafe. It has a much more comfortable strap shoulder pad than the Pacsafe, better padded and wider at the shoulder. The carabiner claps are beefy metal, and I discovered that the new PacSafe 100 (re-named CarrySafe 100) to be released in 2011, will have these carabiner clasps as well.
The strap is robust, but you can easily turn it into a figure 8 to store. Not as easily, though, as you can with the thinner PacSafe 100. Chalk one up for the PacSafe.
I will use this as a daily strap as I did with the PacSafe and am looking forward to that. The CityStrap is made by Daymakers of Santa Barbara, and sold by Corporate Travel Safety. They also sell the Pacsafe strap. Both are about $19-20.
The photos are all of the CityStrap.