From Lenny Lamb website:
For newborn through toddler
This baby wrap is always a good choice - no matter the age, weight or developmental stage of your baby
Front “tummy to tummy”, back, hip
The certificate of compliance with safety norms PD CEN/TR 16512:2015 & ASTM F2907 - 19
Positive opinion of the Institute of Mother and Child
Acknowledged as a "hip healthy" product by the International Hip Dysplasia Institute.