These garments were unsold stock from the 1960s, and have been in storage ever since.
They have been properly stored, and are in very good condition.
They were clearly made before the days of "fabric composition" or "garment care" labels.
The only labels are the size labels - these give the baby size 16 (chest measurement in inches).
The fabric appears to be some sort of polyester, with a texture like Crimplene.
Please treat these coats as dry clean only.