About Us

Discover The World’s Best Casting Socks
Fast, Accurate, and Clean Up is a Snap!

For 20 years, the STS Company has been providing discerning physicians and clinicians with the very best in casting socks. Our versatile, innovative casts are so simple to use that users report being able to see up to 30% more patients per day. STS casting socks create highly accurate impressions quickly – and our innovative no-mess formula makes clean up a snap!

STS Socks: Created By Doctors, For Doctors

After a collective 70 years as working podiatrists, Dr. Peter Graf and Dr. Richard Stess had had enough with the slow, cumbersome, messy process for creating plaster casts needed for custom foot orthotics and custom footwear. They knew there had to be a better way – so they invented it.

Custom Casting for Podiatrists, Orthotists, Orthopedic Surgeons, Veterinarians & More

In 1995, Drs. Graf and Stess brought their first casting socks, designed to make life simpler and faster for the podiatric practice, to market. They were an immediate hit.

Later, working in conjunction and collaborating with prosthetists, orthotists, orthopedic surgeons and veterinarians, other products were developed used in casting for different types of devices such as rigid AFO’s, gauntlets, sockets for prosthetic limbs, knee braces and casts to make specialized braces and splints for small and large animals.

In addition, STS Company manufactures casting products used for production of custom speed skating and high-end custom “dress shoe” footwear for non-orthopedic use.

Made In The USA: Top Quality & Superior Service

STS Company is based in the Bay Area of California. Our international headquarters is in Mill Valley and our manufacturing facility is in Sonoma. All manufacturing is done right here in the USA to ensure excellent quality control. The materials used in the manufacturing process are always fresh. STS products are sold throughout the world and we continue to strive for excellence in quality.  Additionally, our customer service is second to none in responding to any questions you may have.

A Commitment to Innovation

The STS Company mission has always been to make life easier and save time for the practitioner in providing orthotic and prosthetic devices for excellent patient outcomes. Our easy to use, highly accurate products achieve this goal, all at a reasonable cost. But we are not done yet! We continue to develop new products to serve the needs of those who require unique casting applications for whatever their specialty demands. If you can’t find what you’re looking for on our website, let us know. We’ll work with you to help you find a solution that meets your casting needs.