Versatility makes this soft-structured carrier a winner. Babycenter. The ergonomic Boba 4G soft-structured carrier is designed to adapt, so you can better enjoy the adventure. From newborn into infancy through toddlerhood, the Boba 4g carrier moves with you and your baby. Packed with thoughtful features, like an integrated infant insert, multiple adjustments for a perfect fit, front and back carry options, convenient pockets for on-the-the go storage, and removable sleeping hood and foot straps. Wherever you go, Boba grows with you.