Made of lightweight high performance fabric, the ERGObaby® Performance Infant Insert is the perfect companion to the Performance collection of carriers.  Ideal for outdoor activities in all climates, babies and parents are cooler and more comfortable with this unique insert. Used for infants up to 6 months, this design easily enables parents to ensure that their newborn is positioned correctly on the pillow, keeping pressure off the developing sacrum, and supports the development of the spine and hips. It snaps closed around the infant, holding the baby in a cozy, protected environment close to the heart, as well as in an ergonomically correct natural sitting position.