I purchased size 7 1/2 M in the Light Khaki color.  It's a well-made shoe for light everyday wear.  The fabric is light, crisp with a slight silkiness to it and I think it would wear well and repel dirt somewhat.  I wanted to keep the shoes but they were a bit too long and gap somewhat when I walked.  I don't feel the 7 medium would work after reading the reviews for my particular foot shape. ALso I think the 7 narrow would be too tight across the top of my foot.  I purchased another very similar styleGH's in a light grey tweed fabric and I will be reordering those in 7 medium because they didn't gap and felt softer around the ankle due to the style of padding.  For the right sized foot, these shoes would be excellent.  They are nice shoes for the price.  I wouldn't recommend for athletic use or hard walking on pavement.<br /><br />12-17-15 - I have found the Grasshoppers sneakers to be unsafe for me because the soles are not completely rubber as they state in the online description.  I have slipped and nearly fallen when wearing them.  There are a some very small strips or circles of rubber material, but mostly a hard plasticized material which is totally slippery on tile or other smooth floor surfaces that may have a few drops of moisture on the surface.  Therefore I have reduced the stars from 4 to 2.