What are the size requirements for children using the Stroller Seat? July 21, 2022 18:19 Updated Use from birth with included, reversible infant insert up to 50 lbs. Related articles G5 Stroller + Seat User Guide Can I use the Stroller Seat or Bassinet in the car? G5 Toddler Seat User Guide What is the weight limit for using the Orbit Baby Toddler Car Seat on the Orbit Stroller? How do I know my child is old enough to ride while the caregiver jogs?