I first bought this Merrell MJ in 'Aluminum', and wore it all last summer and throughout a 2.5 week tour of Turkey last fall. I can wear it barefoot or with thin socks. Thanks to the adjustable Velcro strap, I can tighten or loosen the fit as needed, esp. when my feet swell on hotter days. This style has the comfort and support of a sneaker, but looks stylish enough to wear with pants, capris, or a skirt; I wear them year round (of course with socks in the winter here in Aspen). I like Merrell's Q-form insole for wearing this shoe barefoot (breathable, doesn't retain odor), but I have a somewhat high arch, and this shoe doesn't give me enough arch support. To fix that issue, I placed a 3/4-length arch support UNDERNEATH the Merrell insole and ta-da! I can wear them for 10-12 hrs comfortably, whether standing at work or walking over uneven ground at Ephesus and Troy. I loved my first pair so much I've bought a second pair in 'Cocoa' for 2013 - I'm eyeing the 'Olive' color too.NOTE: All Merrells run a half-size 'small' in my estimation; I normally wear a 7.5 in shoes I wear barefooted in the summertime, but all my summer Merrell shoes and sandals are a size 8 (and a size 8.5 for winter shoes which I wear with socks).