Never too hot. Never too cold. Our 4-in-1 carrier with temperature control is always just right. Zip-up the panel for warmth and zip-down to expose cool, breathable, 3D mesh. With two-way adjustable shoulder straps and perfect fit adjusters you can easily achieve optimal comfort for you and baby. This four-position carrier, made from our softest, most durable cotton also provides soft padded leg openings for your little one. Newborns to toddlers (7lbs-33lbs). For babies 7-12 lbs and infant insert (sold separately) REQUIRED. For babies 12-33 lbs, no infant insert is required.