TheraTogs Wunzi System

Infant_crawlingThe Wunzi Infant system provides a customizable body hug that improves trunk alignment and stabilizes the core for those critical infant growth months.

Inspired by the familiar infant “onesie” clothing, the Wunzi offers caregivers and clinicians a simpler alternative to the two-garment TheraTogs system. The elegant over-the-diaper design goes on in seconds.

Closure tabs are embedded right into the garment, so there are no loose tabs to keep track of!

Like all TheraTogs systems, the Wunzi is a comfortable, foam-lined, Velcro®-sensitive garment and strapping system that grips the skin. The patented composite fabric is elasticized with a stretch bias that favors good postural alignment – just the thing for a growing baby. The Wunzi and the Limb Kit include grip-lined elastic straps that operate like external muscles and ligaments to improve functioning body and proximal joint alignment in order to optimize motor development.

Responding to customer feedback, we recently expanded the base Wunzi Infant System configuration to include the limb cuffs and strapping you need to create the best infant postural system possible. (The Wunzi Limb Kit is still available, in case you need additional components for your client.)

Assessing & Addressing Postural Alignment & Control

We’ve put together an Infant Postural Alignment & Control Algorithm that will help clinicians determine their best options in managing postural alignment and control for their infant clients when using the Wunzi system.

The algorithm, authored by TheraTogs founder Beverly Cusick, offers a ‘flowchart’ approach to decision-making when considering postural alignment issues.

Product Specifics

The Wunzi can be effectively used to address a number of infant indications:

  • Hypotonia
  • Diplegic Cerebral Palsy
  • Hemiplegic Cerebral Palsy
  • Torticollis
  • Athetosis
  • Cerebellar Ataxia
  • Obstetrical Brachial Plexus Injury (OBPI)
  • Developmental Delay

Working together, the clinician and caregiver can achieve these and similar outcomes with the Wunzi Infant System:

  • Increase sensory awareness and information
  • Train functioning trunk muscles in shorter state to improve postural alignment and control
  • Limit excessive trunk motions
  • Improve functioning alignment of hips and/or shoulders
  • Gently stabilize one or both scapulae
  • Improve respiration by reducing flexible kyphosis

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Plantinga Y, Perdock J, de Groot L. Hand function in low-risk preterm infants: its relation to muscle power regulation. Dev Med Child Neurol 1997;39:6 –11

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Gesell A. Gesell and Amatruda’s Developmental Diagnosis; the Evaluation and Management of Normal and Abnormal Neuropsychologic Development in Infancy and Early Childhood. Hagerstown, Md: Medical Department, Harper & Row; 1975.

Allen MC, Capute AJ. Tone and reflex development before term. Pediatrics 1990;85:393–9

VlesJS,KingmaH,CabergH,DanielsH,CasaerP. Posture of low-risk preterm infants between 32 and 36 weeks postmenstrual age. Dev Med Child Neurol 1989;31:191–5

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For Torso Length measurement (expressed in centimeters), measure down from C-7 (the big bone at the bottom of the neck) over the diaper and up to the child’s navel as shown below. Be careful to wrap the tape gently under the diaper. For Belly Girth, measure the infant’s belly circumference at the navel (also in centimeters).

Model #

Model Name



Torso Length

Belly Girth

wunzi image

Torso Length


Wunzi XXSmall

0 – 3 mo.

7 – 12 lbs.

40 cm

40 cm


Wunzi XSmall

3 – 6 mo.

12 – 17 lbs.

50 cm

44 cm


Wunzi Small

6 – 12 mo.

17 – 18 lbs.

55 cm

46 cm


Wunzi Medium

12 – 18 mo.

18 – 21 lbs.

60 cm

50 cm


Wunzi Large

18 – 24 mo.

21 – 26 lbs.

68 cm

54 cm


Limb Kit, Small

0 -12 mo.

Up to 18 lbs.


Limb Kit, Large

12 – 24 mo.

Up to 26 lbs.

TheraTogs systems are FDA Class I medical devices intended to be issued by, and applied under the supervision of, a licensed healthcare practitioner engaged in neuromotor training. TheraTogs systems are made of GoldTone – a proprietary and patented latex-free composite fabric with foam backing made of an aqueous-based elastomeric urethane. TogRite strapping is latex-free elastomeric strapping with an inert, silicone-based grip surface.
TheraTogs™, Therapy You Wear™, TogRite™ and Wunzi™ are trademarks of TheraTogs, Inc. TheraTogs systems are protected by US Patents # 8,007,457 and 8,535,256 B2, and Canadian patent #2495769. Additional US and foreign patents pending.

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