Attention, make sure to buy a size smaller than what you wear in shoes. For example, if you wear a size 43 in shoes, buy the sandals in size 42.

The quality of the materials is not so good.. after a week of use, the top part started to scratch and after 3-4 washes that I did (only with water) the logo started to peel off, resulting in them not looking so nice.
Quite lightweight (which is good for me)
Relatively comfortable
If someone decides to buy them (although I don't recommend it), they should get half/one size bigger.

The size for me was EXACTLY what I wear in sneakers, it fits perfectly without moving from its place. They are very lightweight, very beautiful, and quite comfortable, not too hard nor too soft. On the downside, the upper part with the faux leather peels off very easily and deteriorates. The beach or intense rubbing during washing destroys them

I have been using them for about 6 months. They don't slip, they are comfortable and quite beautiful. The size needs attention, I wear size 45 but I got size 44 and they are more than comfortable for me. I recommend it!

The slippers are fine, just if you're used to wearing slippers that are "tight/fitted", take a size smaller than what you usually wear. I got them in size 45 and while previous Nike slippers I had in size 45 felt like wearing athletic shoes (in terms of fit), these are comfortable, they have room and I prefer them. For those who want slippers with a soft sponge insole, these don't have that.

Edit: 16/4/22. After a while, due to their material, they need a good wash because even if someone only wears them in the bathroom, they start to collect dirt and smell. Now I wash them about every 10 days. It's somewhat unrelated, but if laundry detergent spills on them, it's very difficult to remove. I don't remember if they come in other colors, I got them in white and to remove the stain from the detergent, I needed bleach. Anyway, they haven't suffered anything for so long.

I bought it recently in white color for the amount of 19.99 euros. It is very comfortable and worth its money. It has excellent quality, the only downside was that the size came out too big.