Polo Jeans Co, Not Polo Ralph Lauren This is the Polo Jeans sub-label, a Y2K-era diffusion line distinct from mainline Polo. Collectors often conflate the two, so worth noting upfront. Navy blue ribbed knit crew neck, 100% cotton. White stripe detail runs along the shoulders and sleeves. Embroidered American flag patch on the left sleeve with Polo Jeans Co Ralph Lauren branding. Long sleeves. Pit to pit: 18 in. Hem width: 18.5 in. No visible wear, no flaws. The ribbed construction runs slim through the body. If you are between sizes or prefer a looser drape, size up.