AMERICAN SPORTSWEAR SHORT SET.

The 1949 GNAT American Sportswear Boy's Short Set is a vintage clothing item likely associated with the brand GNAT, which produced American sportswear. These types of short sets were popular in the mid-20th century, especially in the post-World War II era, when casual, comfortable clothing became more popular for children. The short set would consist of a short-sleeve shirt (often a button-up or pullover style) and matching shorts, designed for boys. It would reflect the casual, sporty aesthetic of the late 1940s. The fabric could be cotton, seersucker, or linen, which were commonly used for children's summer wear during this period. Bright, cheerful colors such as light blue, red, green, or checker ed patterns were common for boys' clothing in the 1940s. The set might include small decorative details like a pocket on the shirt, a button-down collar, and elastic or waistband shorts for comfort.

The "American Sportswear" part of the description suggests the brand emphasized a sporty and casual style that would be suitable for outdoor activities, playing, or casual outings.

Since the GNAT brand is associated with mid-century fashion, the item could also be considered a collectible vintage piece, especially for enthusiasts of retro children's clothing.