Soulframes are an older way to attach frames to a boot, the frames and souls are one piece!
These soulframes are a soulplate with an attached frame to be put on Roces Fifth element, 5K and Khuti skates.
They are most likely meant for Khuti’s but they should work on all of these.
They can be attached to any of these skates.
The size is 11 which is the UK shell sizing, which I believe holds the 10-11 UK sizes
Which comes down to 11-12 US
For EU sizes that would be 45-46!