Excellent slippers.
The sole is non-slip, the inner insole is removable and reinforced with foam, which gives a particularly soft feel.
They are also quite warm. The more you wear them, the more they adapt to your foot.
In appearance, they are relatively bulky, but not heavy.
Their fit is large. The size 45 that I wear (and based on the company's chart) is quite comfortable, even borderline large. However, since I wear them with socks, it's OK.
They can be washed normally in the washing machine, except for the inner insoles.