Materials Guideline
Top Cover Materials
The top cover material is what your patients will feel when their foot comes in contact with the orthotic device. From standard to highly technical, we have the top cover material that will best suit your patients needs. Each material can be used in tandem with other top covers or mid-layers to achieve the desired result. This list is in alphabetical order for easy reference.
Black Carbon Vinyl
A sleek, durable 0.6 mm top cover made from carbon-fiber-infused vinyl with mesh backing. It delivers excellent grip to prevent in-shoe slippage and stands up to wear—making it suitable as a standalone cover or layered over cushioning for added structure.
Black ETC
A high-performance, moisture-wicking top cover with neoprene backing, available in 1.5 mm and 3 mm. ETC™ minimizes friction against the sole, keeping patients’ feet cooler and more comfortable—especially ideal for active users and long-distance wearers
Black Neoprene
Featuring a durable, neoprene-nylon composite in 1.5 mm or 3 mm thickness, this cover cushions, insulates, and resists wear. It offers good shock absorption and energy return, and cleans easily with soap and water—perfect for active or rugged daily us
Black orthohyde
A low-profile, leather-like cover without the bulk. Orthohyde offers supple durability superior to standard vinyl and is ideal for dress orthotics. It layers beautifully over cushioning options and complements formal footwear with a polished finishing touch
Black Puff
Our most popular EVA-based cover, available in 1.5 mm and 3 mm. Puff is highly versatile—easy to trim, cushion, and shape for custom accommodations. Multi-colour options are also available in 3 mm for visual appeal
Diabetic Combo
A specialty diabetic blend available in 3 mm and 6 mm (total thickness of the built-up layers). This combo delivers gentle cushioning and pressure relief with non-allergenic, biocompatible materials—ideal for accommodative diabetic orthotics
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Leather and Suede
Natural, antimicrobial materials that elevate both function and style. Easy to clean and moisture-resistant, leather or suede finishes enhance dress orthotics or sandal-specific designs
Microfash
A high-performance, leather-look cover in black or pink (including perforated variants). It’s breathable, washable, anti-odor, and light-fast—making it an excellent, durable option for daily-use orthotics
Microfash with Poron
Combines breathable Microfash with a 3 mm Poron cushion layer for enhanced comfort and moisture control. This layered option offers moderate energy return with perforation to prevent moisture buildup
Plastazote
A soft, closed-cell, non-allergenic foam popular in diabetic and accommodative devices. Light, washable, and breathable, it adds a gentle cushioning layer that also signals ulceration through visible discoloration
Vinyl
A classic 0.7 mm leather-grain vinyl with stitched mesh backing. Durable and attractive, it works well as a stand-alone cover or over cushioning layers. Additional colours available on request
XS Neosponge
A silver-infused, antimicrobial top cover in 1.5 mm and 3 mm. XS Neosponge regulates temperature, resists odors, and offers anti-static benefits—an excellent choice for hygiene-conscious users
Bottom Cover Materials
A bottom cover can serve a variety of functions such as add reinforcement, protect mid-layer features and the back side of top covers, improve slip on the bottom surface of the orthotic to make it easier to get the device in and out of shoes, improve shoe fit, and reduce slide within the shoe.
Black Vinyl
A structured vinyl bottom cover that protects the device shell and makes insertion into footwear smoother—ideal for durability and longevity
Black Nyplex
A resilient, washable blend of nitrile rubber and PVC available in 1.5 mm or 3 mm. Nyplex bottom covers provide solid shock absorption and textured grip, enhancing safety and comfort
Cork
Our rubberized cork bottom cover adds semi-flexible support and structure. Available in 1.5 mm and 3 mm.
Mid-Layer, Forefoot Extension, and Addition Materials
Mid-layers and forefoot extensions can be used to add cushion, increase shock absorption or energy return, create space for offloads, and improve shoe fit. Each material has its own unique properties and functions. Contact the Crux Lab Team to learn more about the materials and the available additions/accommodations.
Cork
Semi-flexible support for shells and offloads
Poron
Soft, resilient cushioning ideal for the heel and forefoot. Its open-cell structure resists compression, so it won’t pack down over time—ensuring long-lasting shock absorption and consistent support, even with extended daily use. A trusted choice for both comfort and durability.
Nyplex
Closed-cell rubber for cushioning or layering
Trusted Materials—And More Behind the Scenes
The materials listed here are our go-to standards, available right on the order form—tested in our lab and trusted in real-world use. But that’s just the beginning. We’re always sourcing new materials and carry several specialty options not shown here. If you’re looking for something specific, just ask—we probably have it.
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Contact the Crux Lab Team if you would like to request custom colours or specialized materials.