Floral design fleece romper with non-slip grips. - Brand: next - Design: Floral - Features: Non-slip foot grips - Material: Fleece Thank you for viewing. 9-12 months I used this several times during the winter when carrying my baby in a baby carrier, and in early spring when using a stroller. It's thin, so it didn't get in the way when using a baby carrier, stroller, or car seat.