My big toe goes numb in my boots after an hour.
I'm pretty sure this is blood related rather than cold as when I undid the instep buckle, feeling went back to normal after about 30mins. I walk also skiing with both midfoot and forefoot buckles undone to test (they barely need tightening anyway apart from first notch).
Boots are Lange Rx 100.
They feel very snug, even a little difficult to get in but no pressure points anywhere. I had some ankle grip/brace put around the liner when they were new as I felt my back heel was lifting a tiny bit when skiing and now it does not.
They also have moulded footbeds.
Think it would be worth stretching the instep somehow?