Keep your walk supported by the Spenco Medics Diabetic Insoles! Please note: These are Spenco Insoles distributed by Implus. Sold as a one-pair pack. Plastazone foam top cover. Please note: For half sizes, it is recommended to order the next size down. TOTALSUPPORT footbed. Low-density PolySorb Premium SpenCore material Memory Structured Foam offers a cushioned step while eliminating blister-causing points. Recommended for shoes with removable insoles. Imported.