I'm considering this AGL bootie after trying it on in the store, but I'm not sure about the sizing. This would be the most expensive bootie I've ever purchased so I want to get it right.

I tried on both the 39 (listed as US size 9) and the 39.5. I normally wear a US8.5 or 39 in boots, but the 39 felt slightly snug on the width. The 39.5 felt right in the width, but long in the length. I'm wondering whether the 39 will stretch with wear. Any input on AGL sizing would be helpful.

They felt wonderful on the foot and had a nice sleek ankle fit, which I've been looking for.