The Fresh Air Crib Liner™ is carefully crafted and expertly designed in consultation with pediatricians, nurses and physical therapists for your baby to sleep safely and you to sleep soundly. It is the safe crib bumper alternative. It's adjustable to fit most 4-sided slatted cribs, locking in place a protective liner of transparent and ventilating mesh. This breathable, single-layer mesh provides fresh airflow for safe sleep as well as visibility for peace of mind. Designed with full back panel coverage to keep your baby securely nestled inside the crib. Easy one-time installation secures the liner in place even during sheet changes. Adds the finishing touch to any nursery.