Introducing SMO3D: Surestep’s Next Generation SMO

January 26, 2026

More than 25 years ago, Surestep redefined how clinicians support children with hypotonia by introducing a compression-based SMO that set a new standard of care. Built on a deep understanding of real-world clinical needs, the Surestep SMO became a trusted solution for children with hypotonia and pronation. Using extremely thin, flexible thermoplastic, the Surestep SMO’s innovative design compresses the foot’s soft tissues, stabilizing children while still allowing for natural development.

The Surestep SMO3D builds on that clinically trusted foundation, now re-imagined through modern 3D printing. Lightweight and flexible, this next-generation design provides the support needed to improve balance and coordination without restricting movement. Purposefully engineered to meet the needs of patients and practitioners, the SMO3D brings proven Surestep principles into a new era of orthotic care.

Innovative 3D-Printed Design

Advanced 3D printing enables precise fabrication and functional design features, including auxetic structures that flex and expand around the malleoli for added comfort, variable wall thickness for targeted support, and durable color-dyed materials that maintain their vibrancy.

Comfort that Encourages Wear

Lightweight, flexible materials and a perforated design offer breathability and freedom of movement. The low-profile silhouette and narrower heel post allow the SMO3D to fit into shoes more easily, supporting more consistent wear.

Clinically Trusted Results

Rooted in the same compression-based approach used in the fabrication of nearly 2 million SMOs worldwide, the SMO3D is designed to deliver results clinicians can rely on.

SMO3D Features & Benefits

Flexible: Auxetic structures built over the malleoli provide added flexibility over bony prominences
Shoe-friendly: Thin, smooth surface and narrow heel post allow the device to fit easily into most shoes
Targeted support: Custom wall thickness throughout the device provides stability without added bulk
Durable color: Dyed color that lasts through the duration of treatment
Lightweight: Designed to be a lightweight solution to improve patient comfort and compliance
Breathable: Perforated design throughout allows for a cooler, more comfortable fit
Reinforced rivet holes: Solid, non-perforated material around the rivet hole provides added strength and long-term durability

SMO3D Specs

3D Printed from PA12 Nylon Filament
Fabricated based on measurements, cast, or scan
Weight limit ≤ 50 lbs
Support Level: Dynamic Stability
Color Options: Light Gray, Dark Gray, Green, Teal, Pink

Join a Live Webinar (1.25 CEUs)

Ready to dive deeper? We invite you to participate in our live webinar sessions throughout February. This one-hour course will present case studies of pre-ambulatory and early ambulatory children, including their progress with the Surestep SMO3D. Additionally, we will cover best practices for ordering, fitting, and educating families and healthcare teams.

Printing Potential: Advancing Gross Motor Skills with the Surestep SMO3D