The Performance Long-T from On is built to function in changing conditions. Blending breathability with warmth, it keeps your body temperature in the comfort zone even when your training takes you out of it. This adaptive quality makes it ideal for the stop-start training or in unreliable weather. Seams are tactically positioned to reduce irritation and distractions to an absolute minimum. A fast drying, incredibly lightweight Japanese knit fabric is used because of its ability to effectively wick moisture away from the skin, keeping you warm in the cold and allowing you to breathe when it's hot. A special antibacterial treatment is integrated into the yarn for enhanced freshness. As the name suggests, the Long-T is full of contradictions. Light yet protective. Detailed yet simple. Casual and comfy yet built for the ultimate level of running performance. Made using quick-dry mesh throughout, it can be worn for the morning run and then on to the day ahead - and look good doing both.