- T-shirt: 60% cotton, 40% polyester. Pant's shell: 100% nylon. Pant's lining: 100% cotton.
- Both items: machine washable.
- T-shirt: Size 9 months has a 12¾" body length and a 14½" sleeve length. Sleeve length is taken from the center back of the neck.
- Pant: Size 9 months has a 6¼" rise and an 8¾" inseam.
- T-shirt: crewneck; two-snap placket at the left shoulder; long sleeves with ribbed cuffs; "USA 67 Polo Ralph Lauren" and an American flag–inspired graphic printed at the center front.
- Pant: ribbed elastic drawstring waistband; faux fly; two side cargo pockets; ribbed cuffs.