ERGOBaby's all-in-one, newborn-ready Omni 360 Carrier has all the carry positions you need. Omni 360 grows with you from week 1 to 48 months. Their crossable shoulder strap gives a personalized fit - you can have it all! Adjustable, cushy shoulder straps and lumbar support make it easy for you to find the perfect fit at each age as well. Omni 360 grows with baby from week 1 through toddlerhood (~0-48 months / 7-45 lbs) and offers a perfect fit for all parents.