I use this holster to carry my E2E on my ankle daily, via an elastic velcro strap (like used on an MP3 carrier). Its compact enough to fit inside my pant leg and keeps the light secure with every step I take.
The belt loop on the holster actually opens completely flat (via velcro) which allows me to inturn stick the holster right on my blackhawk tactical vest, since the inner flap that forms the belt loop has velcro on both sides. This also stops the holster from sliding around on my ankle strap because the inside of the belt loop is the stiff side of the velcro.
The holster does not fit the e2d very well. It fits but I would liked to see a little bit more room for the e2d. But other wise the holster is perfect. The belt loop is great because you can take it off your belt or what every it is attached to. The holster is very very strong. It is built as great as the Surefire Flashlights.
The holster fits the flashlight just fine. My only recommendation would be for the closure strap to cover a larger velcro area for better securing the strap over the flashlight.