Aprica Koala Ultra Mesh Baby Carrier, usable from 0 to 36 months, can be used from newborn, 4-WAY (Navy) I used this when my baby was a newborn. I only used it for about 1-2 months. I haven't used it very often, but I don't have the support belt that is used when carrying the baby on your back. There are no problems with the buckles or stretching of the elastic. Other than that, there are no noticeable stains, but please understand that this is a used item before purchasing. Color: Navy Baby carrier for newborns that allows for natural sideways carrying [Target age] 0 months (weight 2.5kg) ~ 36 months (weight 15kg) [Product size] Main body: Backrest width 28.8cm x Backrest length 49.6-57.5cm (with head support) [Set contents/Accessories] Main body, holding pad, head support, drool pad, sleep curtain You can download the instruction manual from the official website. Thank you.