I have had this style for years.  I wear them in winter with socks.  They are very comfortable, and the socks in winter keep my feet warm, and I still have comfort.  I love birkenstock, so I wear various styles of birkenstock year round.  I bought two pairs of these in lavender and will probably buy a third.  With the lavender being only $33 a pair, you will never find them cheaper for this style.  If you don't like the lavender, buy another color.  Be sure to try this style.