4moms Newborn Seat Insert's smooth nest-knit fabric with breathable 3D air mesh provides enhanced breathability and airflow to keep baby cool and comfortable. The updated design features fresh and modern colours. The lightweight, mesh newborn insert also provides added comfort and support for your newborn. It fits perfectly with the 4moms MamaRoo, 4moms RockaRoo, and 4moms BounceRoo infant seats and is machine-washable.