The MX 35 runs true to size, so we recommend ordering based on your usual US size. If you are between sizes or widths, we recommend going up in size. The ideal fit for an open-back shoe like this will leave minimal space between your heel and the edge of the sole, even in the larger size.

Medium width is considered standard, so if you generally find standard widths comfortable in other shoes, we suggest taking a Medium. However, if you find that other shoes often pinch or feel too tight around the ball of your foot, the Wide is a fantastic option to try. It is made on a combination last, with the toe box being the only area that is wider. (It's also a great option to try if you have bunions.) The Narrow will be more narrow throughout the entirety of the shoes; it's a good option if you find your foot frequently slips or feels insecure in a standard width.

Since calf leather is porous and absorbs water easily, avoid getting them wet. Getting the shoes soaking wet can irrevocably stain the leather, but if they just get a bit wet, stuffing the toe area with clean, un-dyed paper or cloth and letting them dry naturally, without heat, can help them to recover.

Most quality shoe repair shops will offer products to polish, protect, and refresh the leather's surface. A neutral cream polish—one without color—will also help protect the surface from scuffs and scrapes and keep the leather hydrated. If something's spilled on the leather, try using a soft cloth with a small amount of cleanser or cream on it. Rub the surface in a circular motion, then allow the shoe to dry before buffing the entire thing lightly with a dry, clean cloth.

The MX 35 has a similar fit to our Lena Sandal, though some customers prefer to size up in length in open-backed styles for additional length behind their heel.