Infant: up to 2 years, 8-35 lbs, starting at 22" tall
The infant size has a width adjustable base. It has a buckle mechanism that allows the parent to cinch the base of the carrier to different widths to allow very young babies to be legs out, with proper positioning and without an insert.
15? h x 9-15? w
Standard: 8mo-3 yrs 20-40lbs, starting at around 28? tall
Standard is the choice for most people.
Please realize that the standard will fit up to 3 years old/4T. This is the size to buy if you want to buy one carrier without having to size up later.
16? h x 17? w
Toddler: 18mo-4+ yrs, 25-45 lbs, starting at around 32" tall
There is a huge difference between the standard and the toddler - please be aware that the minimum recommended size is just that, and it may still be too large for a child who meets those minimums.
18? h x 19? w
Preschool: 3-5 years, 35-55 lbs, starting at 38? tall
This is truly the largest child carrier made. Great for big kids and kids with special needs who still want to be carried through the preschool years.
The height measurements are without the headrest. Add 2? for the overall height.
20?h x 20? w
***All weights are suggested weights and may vary depending on each child. Suggested weights are based on appropriate proportions for the body panel size. Each Kinderpack can safely hold much higher weight limits than what is suggested, but comfort may be compromised.