Postobon Newborn Baby US Unique Soccer Bodusuits Onesies (6-12 mos)

I purchased as baby shower gift for someone. I know there was a printed label in the neck area but I’m not sure if there was a tag on the side seam.

Is this a 6 month or 12 month size?

I have a 3 month old baby 14 pounds wich size will fit?

Is the material of this baby onesies soft?