One Source for Check Socket and Definitive Socket Materials Shop for Socket Materials OP-TEK® Flexible EVA Sheet for O&P OP-TEK® flexible sheet for inner liners in rigid socket frames. PETG Sheet for O&P PETG Sheet for O&P; transparent for a good evaluation interface. Orfitrans™ Flexible EVA Sheet for O&P Orfitrans™ flexible sheet for orthotics and prosthetic sockets. Carbon Braid Carbon Braid, for upper limb and lower limb prosthetics to reduce weight and increase stiffness. Shop for carbon braid. Research Case Studies and Applications Orthotics and Prosthetics Plastics, transfer patterns, fabrication materials, and technical advice for O&P professionals. Heavy Transfer Paper Reduces Waste, Lowers Costs Heavy transfer paper and silicone spray eliminates wrinkles reducing recalls. Technical Advice Helps Eliminate Curling Improving quality and productivity for orthotic and prosthetic fabricators. Custom Cutting Cut-to-size capabilities for large and small jobs using CNC and manual cutting equipment. Our socket materials are also available on OPIE.