Hello, Elle!
What I have are "ice grips".
They fit on to my shoes and have prongs to give a sure grip on the ice.
They bite into the ice or frozen snow.
Google "ice grips" and you can see them.
Or, there will be some on Amazon.
I think both spellings are acceptable, Elle.
Megan Boyd was a remarkable woman.
There was a documentary about her.
"Kiss the Water" I think it was called.
She specialised in salmon flies....and she never fished herself!
She died a few years ago.
My son ties flies too, and sells them.
No sign of snow, yet, thankfully!