Life — October 21, 1909 — page 3: what you’re looking at

What you’re looking at

# Analysis This page is **not a cartoon or satire**—it's a straightforward advertisement for Duofold Health Underwear, published in *Life* magazine. The ad features a photograph of a man demonstrating the product by pulling at his sleeve to show the fabric layers. The marketing pitch uses a scientific analogy: just as two thin blankets trap air and provide more warmth than one heavy blanket, Duofold's two-layer construction creates insulating air space while remaining lightweight. The advertisement emphasizes comfort, practicality, and "scientific common-sense" design—a typical early 20th-century sales approach that combined pseudo-scientific reasoning with health-conscious messaging to appeal to consumers. Prices ranged from $1.25 to $5 per garment.