For Nike, it’s a shoe called the Streakfly ... while a new engineered mesh upper helps drop the weight down to just 4.4 ounces for a men’s size 8.5 (a 24 percent reduction from the first Streakfly).

Buyers have rated this Nike shirt 4.8 stars out of five. "My son just loves this shirt!" says a reviewer. "The best casual tee for everyday wear. Fits very comfortably and true to size," says ...