This unisex jacket is part of the brand's versatile P-Layer System, which allows for customization of warmth between seasons in pure Polo style. It can either be worn on its own or zipped into a “P-Layer 1” piece (sold separately) for added insulation. Developed with water-repellent fabric and recycled polyester fill, it also reverses between two solid-hued sides. The fit of this Unisex P-Layer jacket is based on Ralph Lauren's boys' sizing (sizes 8-20). It runs comparable to Ralph Lauren's girls' sizing (sizes 7-16). The brand suggests customers who typically order Ralph Lauren's girls’ small or medium to order their usual size. Customers who typically order Ralph Lauren’s girls’ large or extra-large should order a size large.