This is Aero Tech Designs’ Men’s USA Classic Unpadded Workout Tight in black 80/20 nylon-spandex. The four-way-stretch knit provides light muscle-insulating compression, resists pilling and abrasion, and skips the chamois for use beyond the bike.
It layers under shorts in cold weather or runs solo for gym sessions, trail runs, and shoulder-season rides — the thin, non-restrictive ankle hem clears socks and shoes, and the drawstring waist holds position without rolling.
Aero Tech Designs has designed and sewn cycling apparel at its factory in Coraopolis, Pennsylvania, outside Pittsburgh, since the 1980s, with one of the widest size ranges in cycling.
