CrocsClassic Crocs Slide unisex-adult Slide

I’m a women’s size 6 would it be safe to order a size smaller?

Either the us sizes are wrong or the eu sizes are wrong. once added to cart they do not reflect same sizes as crocs official website?

I wear size 6 Wide, what size should I buy in these shoes ?

Which size do i get if im a women 8.5