They are very lightweight, you can wear them all day and not feel anything. They get dirty very easily but can be washed in the washing machine and dry immediately.
Update: Because they have a mesh between the inner fabric and the outer one, dust gets trapped in between and they need to be washed every week. After 3-4 washes, the designs on the shoe turned beige. They are not bad at all, but they are not the shoe I originally got.