Alexis LeroyWomen Closed Toe Slip On Casual Espadrilles Loafer Flat Comfort Shoes

I wear a size 10 n am hesitant to order the 9.5-10. Some reviews say go up n some say go down. R they true to size?

I wear a 6.50 are they true to size or should I get a 7

Are these sweaty?