The goal of this clinical trial is to learn if pre-walking infants with Down syndrome can use a suspension walker in their home and community environments. The main questions it aims to answer are:
* Is suspension walker intervention feasible for pre-walking infants with Down syndrome?
* What are barriers to successfully using suspension walkers in home and community environments?
* What are facilitators for successfully using suspension walkers in home and community environments?
Participants will:
* Use a suspension walker in the home and community for a three-month period (goal 20 minutes/day, 5 days/week)
* Meet with a therapist three times in their home to learn how to use the walker
* Track how often they use the walker for one week each month
* Complete assessments of infants' gross motor skill and ability to use the walker before and after the three-month period
* Be interviewed after the three-month period about their experiences using the walker