Slippers for 94 year old mum

Try this site unless your mum has very narrow feet; they are rather expensive but sturdy with good soles, although I have not tried the slippers they look supportive and non-slip.

www.widerfitshoes.co.uk/pp+ladies-ladies-slippers-house-shoes+lho1

We get these for my mother in law, aged 89. She is in care and has dementia. Her balance and mobility is still reasonable. The double velcro fastening ensure a snug and comfortable fit.
www.pavers.co.uk/collections/womens-full-slippers/products/adjustable-slipper-with-memory-foam-insole-qing23001-308-164?variant=923890876423

fall prevention in elderly

bought my mum in law some LOTUS make slippers last year ,goos soles on them and a great fit around the heel ,she says they're the best slippers she;s had for years .I got them on Amazon I think

Hotter do slippers too, pricey but look sturdy.