Male or female between the ages of 21 and 75 (inclusive)
Documented type 1 or type 2 diabetes mellitus
Demonstrated abnormal foot biomechanics by the presence of intractable plantar keratoma (IPK) beneath metatarsal heads or hallux
Participants with and without signs of peripheral neuropathy (unable to perceive a 10 gram monofilament or vibration perception threshold (VPT \> 25 Volts)
Able to walk independently without the use of walking aids (cane, crutches, or walker)
Able to speak and understand English
Able to understand the information in the consent form and willing and able to sign the consent form
You may not be if
History of lower limb amputations (excluding toe amputations)
Presence of cutaneous ulceration in the lower extremity
History of or active Charcot neuroarthropathy of either foot
Severe peripheral vascular disease (i.e. ischemic rest pain, 2-block claudication, or gangrene)
End stage kidney disease requiring hemodialysis, stroke, or widespread malignant disease
Pregnant or nursing
Not willing or able to make the required follow-up visits
Insufficient (corrected) vision to complete the questionnaire
