The Baby K’tan BREEZE is made of a unique cotton-mesh construction that provides added breathability. Each loop is split - cotton on one side and mesh on the other. The loops can be rotated to place the mesh in front or back. - Ergonomic positioning for healthy infant development.- Evenly distributes weight across back and shoulders.- Double-loop design slips on like a t-shirt. Material: 100% Polyester Positions: 6 Positions, from birth and up Weight Limit: 8-35 lb. (consult pediatrician for preemies) Machine Washable: Yes Matching Sash Included: Yes