Built for the guy who starts in a hoodie at 6am and forgets he's wearing it by noon.
Poly-spandex blend with four-way stretch, so it moves when you're reaching over a gate or pulling yourself into the cab. Moisture-wicking, which is the difference between a layer that works and one you end up shedding by the truck. Lightweight enough to live under a jacket in November and stand on its own in September.
Full-color print — the graphic is in the fabric, not sitting on top of it. It won't crack, peel, or fade out on you by spring.
The layer you'll keep grabbing until the weather makes you stop.