What Our Gearhead(R) Experts Are Saying:"I wore the Performance Tank through a string of hot summer long runs and the DRYTec fabric genuinely pulls moisture away fast. The bonded seams are a big deal on longer efforts too, zero chafing even when things got sweaty."Summer training runs and race mornings call for a layer that stays out of the way and lets the work speak for itself. The On Performance Tank delivers exactly that, wrapping the body in ultra-lightweight DRYTec moisture-wicking fabric that moves sweat away from the skin and keeps airflow high even when effort spikes deep into a hard session. At just 67 grams, it sits close without restricting, and the athletic cut with a slightly extended hem stays in place through every stride without riding up or bunching. Breathable panels front and back work together to maximize ventilation during high-output efforts, while bonded seams eliminate the friction points that turn long runs into uncomfortable ones. The elastane blend in the back panel adds just enough stretch to support full range of motion through arm drive and shoulder movement, making this tank as functional during track workouts as it is on race day.