I bought my first pair of Birkenstocks over 20 years ago, and admittedly, they were ugly but comfortable.  I bought my first pair of Gizehs in golden bronze last summer after suffering from plantar fasciitis (my podiatrist calls it "the flip flop disease.")  I wore them almost daily with no pain.  Very versatile color and style.  This year, I ordered the leather ones in henna.  They were MUCH darker red in real life - in fact, it's hard to tell they even are red. I love them.  I wear a size 8.5, and always order down in Birkenstocks - size 38.