I love these sandals so much, this is my second pair. My first pair lasted a year, through two months of intense searing hot Greek summer, trekking up and down uneven paths and across boiling sandy beaches. They stay on my feet, are light weight, very comfortable with good grip. Great value for money. I usually fit size 7.5; 41 is perfect with half cm give at the end of my toes. My feet felt vulnerable in size 40 as my toes were right up to the edge.