When the temperature (and competition) heats up. This running tank is quick-drying with max airflow, while keeping weight to a minimum. Fit & Design: Lightweight Japanese knit fabrics wick sweat away from your skin, while drying at rapid speed Highly breathable mesh means you'll feel maximum airflow as your pace picks up Weighing in at just 52g (about the same weight as two slices of bread), this Tank's high-tech fabrics have been stripped down to bare essentials. Women's Shirts & Tops from the On brand.