Rigid throat, no give. Be very careful.
Be careful. The throat on these slippers won't give a millimetre, unlike every other slipper I have ever worn in my life. The design is such that they will stretch in width but the top of the foot opening is absolutely rigid. I ended up with a nasty blister on the top of one foot.
I reached out to the company and they were completely unhelpful. They said I should have returned them on receipt - but the problem was not apparent at that stage so I was unaware of it. It's clearly a design fault and I feel potential buyers should be aware of the issue. I now have a pair of relatively expensive slippers, fit only for the bin.
I will keep this review updated if I receive support from the company.
UPDATE: I am being completely ignored. Steer clear of this dreadful company which couldn't care less if you're unhappy with their product. No other company has ever been this unhelpful.