Orthopedic shoe sizing involves more than the number printed inside the shoe. Length, width, depth, toe-box shape, heel shape, socks, and orthotics all affect fit. Sizes also vary between brands and even between models from the same brand.

Measure both feet

Feet can differ in length or width, and size can change over time. Measure while standing, preferably later in the day when mild swelling may be present. Fit the larger foot and use closure adjustment rather than crowding it.

Separate width from length

If the toes have enough forward room but the sides pinch, increasing length may create heel slip without solving the real problem. Look for an appropriate width and toe-box shape. Multi-width brands such as Drew and Propet provide more combinations.

Account for depth and orthotics

A removable factory insole can create space, but custom devices vary in thickness and shape. Fit the shoe with the orthotic and usual sock installed. Confirm that the heel remains seated and the top of the foot is not compressed.

Test the complete fit

Stand and walk indoors on a clean surface. Toes should move without hitting the front, the widest part of the foot should align with the widest part of the shoe, and the heel should feel secure. Check for pressure after several minutes, not only at first step-in.

People with diabetes, neuropathy, major swelling, braces, wounds, or significant deformity should seek fitting guidance from an appropriate healthcare or footwear professional.