The two best running caps with built-in sweatbands are the Under Armour Mens Outdoor Antler Trucker Hat and the New Balance Unisex 6-Panel Adjustable Workout Hat. Both offer moisture-wicking bands, breathable 3-layer fabric options, and adjustable fits for comfort on long runs. Expect features like 4-way stretch, sweat channels, and easy care—hand wash or air dry. Prices typically range $8–$25, with sturdy build for daily training. If you want more specifics, you’ll find them shortly.