Our journey through the Configurator has finally arrived at the final column, "Covering". It is fitting for this to be the last step in constructing a custom foot orthotic. In essence, it is like the frosting on the cake, the most visible aspect of the orthotic device, and the part that most patients can readily identify. Classic orthotics from the early days of Root Biomechanics rarely included top or bottom covers, and patients often complained of the hardness or slipperiness of the orthotics. Nearly all modern orthotic devices include a top cover of some kind, and many will also include a bottom cover. Top covers contribute to the “feel” and comfort of the orthotic device, whereas bottom covers often contribute to the stability and durability of the device. Each cover material used has advantages and disadvantages, and proper selection will enhance the performance and patient compliance of your orthotic prescription.
The first field in the “Covering” column is “Bottom Cover Material”. Several options for bottom covers are listed, which will be briefly described here. As a reminder, many of our models may have a top cover or bottom cover pre-selected, if so, then you will see an orange check mark in the upper right corner of the field. You may unselect and change this choice if you so desire. Also note the chain link icon in the top middle of the field, clicking on this will allow you to specify your choice as left, right, or bilateral.
The first option listed for bottom covers is “EVA”. EVA is the material used for the midsole of athletic type shoes. Ethylene-vinyl acetate (EVA), also known as poly(ethylene-vinyl acetate) (PEVA), is a copolymer of ethylene and vinyl acetate. An EVA bottom cover will be a good choice when enhanced shock absorption is desired such as the rigid cavus foot type.
“Forefoot Reinforcement” may be selected if you prefer a stiffer bottom cover. This is a good selection if you have a patient who wears through materials quickly
“Pro Grip Wrap” Is a hard plastic material with small nubs that is laminated to the undersurface and edges of the orthotic device to reinforce and protect the bottom and sides of the orthotic device and prevent slippage..
“Pro Grip Extension” is a hard plastic material with small nubs that is placed under the extension only and may help prevent slippage of the orthotic within the shoe.
“Pro Grip Full Length” is a hard plastic with small nubs that extends from the heel posts to the distal edge of the orthotic device.
“Myolite 1.5 mm” and “Myolite 3 mm” Myolite is an open microcellular, polyurethane cushion bottom cover that sits on the inferior surface of the orthotic, extending to a desired length: metatarsals, sulcus or toes. It provides compression resistant viscoelastic cushioning for patients who desire extra cushion. Frame filler is required for a Myolite bottom cover.
“No Bottom Cover" This is a good choice if you plan on making adjustments or modifications to the orthotic devices in the clinic.
“Suede Bottom Wrap” and “Vegan Suede” Suede is an extremely thin, synthetic bottom cover material that sits on the inferior surface of the orthotic and extends to a desired length: sulcus or toes. The synthetic nature of this material mimics natural suede’s thinness, flexibility and attractive appearance but also adds durability, stain protection, odor resistance, and is more water resistant than natural materials. It is the most common bottom cover selection on KevinRoot Medical products because of its minimal bulk and high durability. It protects modifications, pads and other coverings. As a bottom covering, suede covers any forefoot modifications or additional materials requested.
“Special Covering Instructions” Use this section if you want to leave part of the bottom or top cover unglued, This facilitates proper placement of pads and cushions under the top and/or bottom covers.
“Top Cover length” Three options are available here, “To Metatarsals" which would cover the frame only, “To Sulcus” and “To Toes” which would cover the frame and the extension.
“Top Cover Material"
“EVA” - Ethyl Vinyl Acetate, plastic foam material, often used in athletic shoe midsoles, known for flexibility, toughness and rubber-like qualities
“Leather”- natural material, thin and durable. Best for dress shoes. Can retain moisture and discolor over time.
“Spenco”- cloth covered neoprene, very cushioned and usually durable.Multiple thicknesses available. Good for athletic shoes or whenever perspiration may be an issue. Can retain odor, try Febreze, foot powder or deodorant spray
“No Top Cover” - when space in the shoe is limited, or when a patient wears through soft materials quickly, add separate top cover as needed (pre-cut to fit Spenco insoles is common choice), to enable frequent replacement
“Plastazote” - very soft and forgiving. Does compress easily, primary use devices intended for neuropathic diabetic patientsProlite - cushioned, perforated foam, available in different thicknesses. Good for athletic shoes, good for limiting heat, easy to clean
“Prolite” - cushioned, perforated foam, available in different thicknesses. Good for athletic shoes, good for limiting heat, easy to clean
“Protex” -vinyl, faux leather. Thin, easy to clean. Tends to be slippery, particularly with certain socks or stockings. Retains heat.
“Suede” - good choice if not sure if leather or vinyl is preferred
“Special Shape Instructions” Use this field if you are trying to place the orthotic devices in unusually shaped shoes, primarily in the toe box area. It is beneficial to include either the name or model of the shoe, the actual shoe, an insert from the shoe, or a tracing of the outline of the shoe.
It cannot be overemphasized the importance of selecting the correct covering materials for custom made orthotic devices. Several factors to be considered are patient weight, activity type and level, shoe type, underlying medical conditions such as diabetes, neuropathy or vascular insufficiency. Cover materials can be used to add comfort, cushioning and shock absorption to otherwise controlling rigid orthotic devices without compromising functionality.
